The creature not only exists in God, but God also lives in the creature. "We know we dwell in him because he lives in us; he has given us his spirit. This gift from the Paradise Father is man's inseparable companion." "He is the ever-present and all-pervading God." "The spirit of the everlasting Father is concealed in the mind of every mortal child." "Man goes forth searching for a friend while that very friend lives within his own heart." "The true God is not afar off; he is a part of us; his spirit speaks from within us." "The Father lives in the child. God is always with us. He is the guiding spirit of eternal destiny."  P.45

     The divine presence cannot, however, be discovered anywhere in nature or even in the lives of God-knowing mortals so fully and so certainly as in your attempted communion with the indwelling Mystery Monitor, the Paradise Thought Adjuster. What a mistake to dream of God far off in the skies when the spirit of the Universal Father lives within your own mind! P.64

     In every mortal there exists a dual nature: the inheritance of animal tendencies and the high urge of spirit endowment. During the short life you live on Urantia, these two diverse and opposing urges can seldom be fully reconciled; they can hardly be harmonized and unified; but throughout your lifetime the combined Spirit ever ministers to assist you in subjecting the flesh more and more to the leading of the Spirit. Even though you must live your material life through, even though you cannot escape the body and its necessities, nonetheless, in purpose and ideals you are empowered increasingly to subject the animal nature to the mastery of the Spirit. There truly exists within you a conspiracy of spiritual forces, a confederation of divine powers, whose exclusive purpose is to effect your final deliverance from material bondage and finite handicaps.  P.381

     And when such a life of spirit guidance is freely and intelligently accepted, there gradually develops within the human mind a positive consciousness of divine contact and assurance of spirit communion; sooner or later "the Spirit bears witness with your spirit (the Adjuster) that you are a child of God." Already has your own Thought Adjuster told you of your kinship to God so that the record testifies that the Spirit bears witness "with your spirit," not to your spirit.  P.381

     Religion lives and prospers, then, not by sight and feeling, but rather by faith and insight. It consists not in the discovery of new facts or in the finding of a unique experience, but rather in the discovery of new and spiritual meanings in facts already well known to mankind. The highest religious experience is not dependent on prior acts of belief, tradition, and authority; neither is religion the offspring of sublime feelings and purely mystical emotions. It is, rather, a profoundly deep and actual experience of spiritual communion with the spirit influences resident within the human mind, and as far as such an experience is definable in terms of psychology, it is simply the experience of experiencing the reality of believing in God as the reality of such a purely personal experience.  P.1105

     "God is the sure refuge of every good man when in need; the Immortal One cares for all mankind. God's salvation is strong and his kindness is gracious. He is a loving protector, a blessed defender. Says the Lord: `I dwell within their own souls as a lamp of wisdom. I am the splendor of the splendid and the goodness of the good. Where two or three gather together, there am I also.' The creature cannot escape the presence of the Creator. The Lord even counts the ceaseless winking of every mortal's eyes; and we worship this divine Being as our inseparable companion. He is all-prevailing, bountiful, omnipresent, and infinitely kind. The Lord is our ruler, shelter, and supreme controller, and his primeval spirit dwells within the mortal soul. The Eternal Witness to vice and virtue dwells within man's heart. Let us long meditate on the adorable and divine Vivifier; let his spirit fully direct our thoughts. From this unreal world lead us to the real! From darkness lead us to the light! From death guide us to immortality!  P.1448

     "Praise God by seeking the pleasure of the Wise One. Worship the God of light by joyfully walking in the paths ordained by his revealed religion. There is but one Supreme God, the Lord of Lights. We worship him who made the waters, plants, animals, the earth, and the heavens. Our God is Lord, most beneficent. We worship the most beauteous, the bountiful Immortal, endowed with eternal light. God is farthest from us and at the same time nearest to us in that he dwells within our souls. Our God is the divine and holiest Spirit of Paradise, and yet he is more friendly to man than the most friendly of all creatures. God is most helpful to us in this greatest of all businesses, the knowing of himself. God is our most adorable and righteous friend; he is our wisdom, life, and vigor of soul and body. Through our good thinking the wise Creator will enable us to do his will, thereby attaining the realization of all that is divinely perfect.  P.1450

     My brother, good and evil are merely words symbolizing relative levels of human comprehension of the observable universe. If you are ethically lazy and socially indifferent, you can take as your standard of good the current social usages. If you are spiritually indolent and morally unprogressive, you may take as your standards of good the religious practices and traditions of your contemporaries. But the soul that survives time and emerges into eternity must make a living and personal choice between good and evil as they are determined by the true values of the spiritual standards established by the divine spirit which the Father in heaven has sent to dwell within the heart of man. This indwelling spirit is the standard of personality survival.  P.1457

     Faith acts to release the superhuman activities of the divine spark, the immortal germ, that lives within the mind of man, and which is the potential of eternal survival. Plants and animals survive in time by the technique of passing on from one generation to another identical particles of themselves. The human soul (personality) of man survives mortal death by identity association with this indwelling spark of divinity, which is immortal, and which functions to perpetuate the human personality upon a continuing and higher level of progressive universe existence. The concealed seed of the human soul is an immortal spirit. The second generation of the soul is the first of a succession of personality manifestations of spiritual and progressing existences, terminating only when this divine entity attains the source of its existence, the personal source of all existence, God, the Universal Father.  P.1459

     "The soul is the self-reflective, truth-discerning, and spirit-perceiving part of man which forever elevates the human being above the level of the animal world. Self-consciousness, in and of itself, is not the soul. Moral self-consciousness is true human self-realization and constitutes the foundation of the human soul, and the soul is that part of man which represents the potential survival value of human experience. Moral choice and spiritual attainment, the ability to know God and the urge to be like him, are the characteristics of the soul. The soul of man cannot exist apart from moral thinking and spiritual activity. A stagnant soul is a dying soul. But the soul of man is distinct from the divine spirit which dwells within the mind. The divine spirit arrives simultaneously with the first moral activity of the human mind, and that is the occasion of the birth of the soul.  P.1478

     The night before they left Pella, Jesus gave the apostles some further instruction with regard to the new kingdom. Said the Master: "You have been taught to look for the coming of the kingdom of God, and now I come announcing that this long-looked-for kingdom is near at hand, even that it is already here and in our midst. In every kingdom there must be a king seated upon his throne and decreeing the laws of the realm. And so have you developed a concept of the kingdom of heaven as a glorified rule of the Jewish people over all the peoples of the earth with Messiah sitting on David's throne and from this place of miraculous power promulgating the laws of all the world. But, my children, you see not with the eye of faith, and you hear not with the understanding of the spirit. I declare that the kingdom of heaven is the realization and acknowledgment of God's rule within the hearts of men. True, there is a King in this kingdom, and that King is my Father and your Father. We are indeed his loyal subjects, but far transcending that fact is the transforming truth that we are his sons. In my life this truth is to become manifest to all. Our Father also sits upon a throne, but not one made with hands. The throne of the Infinite is the eternal dwelling place of the Father in the heaven of heavens; he fills all things and proclaims his laws to universes upon universes. And the Father also rules within the hearts of his children on earth by the spirit which he has sent to live within the souls of mortal men.  P.1588

     Always respect the personality of man. Never should a righteous cause be promoted by force; spiritual victories can be won only by spiritual power. This injunction against the employment of material influences refers to psychic force as well as to physical force. Overpowering arguments and mental superiority are not to be employed to coerce men and women into the kingdom. Man's mind is not to be crushed by the mere weight of logic or overawed by shrewd eloquence. While emotion as a factor in human decisions cannot be wholly eliminated, it should not be directly appealed to in the teachings of those who would advance the cause of the kingdom. Make your appeals directly to the divine spirit that dwells within the minds of men. Do not appeal to fear, pity, or mere sentiment. In appealing to men, be fair; exercise self-control and exhibit due restraint; show proper respect for the personalities of your pupils. Remember that I have said: "Behold, I stand at the door and knock, and if any man will open, I will come in."  P.1765

     Forewarn all believers regarding the fringe of conflict which must be traversed by all who pass from the life as it is lived in the flesh to the higher life as it is lived in the spirit. To those who live quite wholly within either realm, there is little conflict or confusion, but all are doomed to experience more or less uncertainty during the times of transition between the two levels of living. In entering the kingdom, you cannot escape its responsibilities or avoid its obligations, but remember: The gospel yoke is easy and the burden of truth is light.  P.1766

     But mark you! never did Jesus say, "Whoso has heard me has heard God." But he did say, "He who has seen me has seen the Father." To hear Jesus' teaching is not equivalent to knowing God, but to see Jesus is an experience which in itself is a revelation of the Father to the soul. The God of universes rules the far-flung creation, but it is the Father in heaven who sends forth his spirit to dwell within your minds.  P.1857

     Intelligence grows out of a material existence which is illuminated by the presence of the cosmic mind. Wisdom comprises the consciousness of knowledge elevated to new levels of meaning and activated by the presence of the universe endowment of the adjutant of wisdom. Truth is a spiritual reality value experienced only by spirit-endowed beings who function upon supermaterial levels of universe consciousness, and who, after the realization of truth, permit its spirit of activation to live and reign within their souls.  P.1949

     Up to Pentecost, religion had revealed only man seeking for God; since Pentecost, man is still searching for God, but there shines out over the world the spectacle of God also seeking for man and sending his spirit to dwell within him when he has found him.  P.2065

     Before Pentecost the apostles had given up much for Jesus. They had sacrificed their homes, families, friends, worldly goods, and positions. At Pentecost they gave themselves to God, and the Father and the Son responded by giving themselves to man--sending their spirits to live within men. This experience of losing self and finding the spirit was not one of emotion; it was an act of intelligent self-surrender and unreserved consecration.  P.2065

     Paradise values of eternity and infinity, of truth, beauty, and goodness, are concealed within the facts of the phenomena of the universes of time and space. But it requires the eye of faith in a spirit-born mortal to detect and discern these spiritual values.  P.2078

     "The kingdom of God is within you" was probably the greatest pronouncement Jesus ever made, next to the declaration that his Father is a living and loving spirit.  P.2084

     The great challenge to modern man is to achieve better communication with the divine Monitor that dwells within the human mind. Man's greatest adventure in the flesh consists in the well-balanced and sane effort to advance the borders of self-consciousness out through the dim realms of embryonic soul-consciousness in a wholehearted effort to reach the borderland of spirit-consciousness--contact with the divine presence. Such an experience constitutes God-consciousness, an experience mightily confirmative of the pre-existent truth of the religious experience of knowing God. Such spirit-consciousness is the equivalent of the knowledge of the actuality of sonship with God. Otherwise, the assurance of sonship is the experience of faith.  P.2097

Quotes are from the Urantia book.