What we see of Nature and of human nature justifies this view of a birth of the individual soul from form to form until it reaches the human level of manifested consciousness which is its instrument for rising to yet higher levels. We see that Nature develops from stage to stage and in each stage takes up its past and transforms it into stuff of its new development. We see too that human nature is of the same make; all the earth-past is there in it. It has an element of matter taken up by life, an element of life taken up by mind, an element of mind which is being taken up by spirit: the animal is still present in its humanity; the very nature of the human being presupposes a material and a vital stage which prepared his emergence into mind and an animal past which moulded a first element of his complex humanity.
In fact all the ignorant vital movements originate from outside in the ignorant universal Nature; the human being forms in his superficial parts of being, mental, vital, physical, a habit of certain responses to these waves from outside. It is these responses that he takes as his own character (anger, desire, sex etc.) and thinks he cannot be otherwise. But that is not so; he can change. There is another consciousness deeper within him, his true inner being, which is his real self, but is covered over by the superficial nature. This the ordinary man does not know, but the yogi becomes aware of it as he progresses in his sadhana. As the consciousness of this inner being increases by sadhana, the surface nature and its responses are pushed out and can be got rid of altogether.
Was then the sun a dream because there is night?
Hidden in the mortal's heart the Eternal lives:
He lives secret in the chamber of thy soul,
A light shines there nor pain nor grief can cross.