The desire body also changes, in similar fashion, but the materials for it are expelled and drawn in by the play of the desires, arising from the feelings, passions, and emotions. If these are coarse, the materials built into the desire body are also coarse, while as these are purified, the desire body grows subtle and becomes very sensitive to the higher influences. In proportion as a man dominates his lower nature, and becomes unselfish in his wishes, feelings, and emotions, as he makes his love for those around him less selfish and grasping, he is purifying this higher vehicle of consciousness; the result is that when out of the body in sleep he has higher, purer, and more instructive experiences, and when he leaves the physical body at death, he passes swiftly through the intermediate state, the desire body disintegrating with great rapidity, and not delaying him in his onward journey. The mental body is similarly being built now, in this case by thoughts. It will be the vehicle of consciousness in the heavenly world, but is being built now by aspirations, by imagination, reason, judgment, artistic faculties, by the use of all the mental powers. Such as the man makes it, so must he wear it, and the length and richness of his heavenly state depend on the kind of mental body he has built during his life on earth. As a man enters the higher evolution, this body comes into independent activity on this side of death, and he gradually becomes conscious of his heavenly life, even amid the whirl of mundane existence. Then he becomes "the Son of man which is in heaven,"[249] who can speak with the authority of knowledge on heavenly things. When the man begins to live the life of the Son, having passed on to the Path of Holiness, he lives in heaven while remaining on earth, coming into conscious possession and use of this heavenly body. And inasmuch as heaven is not far away from us, but surrounds us on every side, and we are only shut out from it by our incapacity to feel its vibrations, not by their absence; inasmuch as those vibrations are playing upon us at every moment of our lives; all that is needed to be in Heaven is to become conscious of those vibrations. We become conscious of them with the vitalising, the organising, the evolution of this heavenly body, which, being builded out of the heavenly materials, answers to the vibrations of the matter of the heavenly world. Hence the "Son of man" is ever in heaven. But we know that the "Son of man" is a term applied to the Initiate, not to the Christ risen and glorified but to the Son while he is yet "being made perfect."[250]