If we inject male hormones the child will be male; if we inject female hormones the child will be female. The sex can be changed because sex is an outer thing; it does not belong to the being, it belongs only to the circumference, to the body; it is a hormonal thing, physical. The being remains totally different from it. But soon the distinction arises: the child starts becoming either a male or a female.
In the beginning the unity, then the child is born: bodily he is now either a male or a female. But deep in the consciousness the distinction has still not penetrated. In consciousness he is still neither: the child does not know whether he is male or female. A few more months and then the distinction will enter into the mind. Then the child will have a different outlook, immediately he will become self-conscious.
In the beginning the body was one, then the body separated. But even when the body separates the child is one. Then the child also separates: the human being disappears; you are identified with being male or female, and that continues your whole life. That means you never reach the source again, the circle remains incomplete. A sage reaches the source again, the circle becomes complete. And first the distinction disappears in the mind: just the reverse! In the child, first the distinction comes into the body, then into the mind. In the sage, first the distinction disappears from the consciousness, then from the body, and before he dies he is again one. This is the second childhood: again he becomes innocent, but this innocence is very rich.
The innocence of a child is poor because there is no experience; the innocence of childhood is just like an absence of something. But the innocence of a sage is a presence of something, not an absence. He has known all the ways of the world, he has moved, he has experienced all that was to be experienced. He moved to the very opposite end: he became a sinner, he delved deep, he indulged, he experienced all that this world can give, and now he has come out of it. His innocence is very, very rich because experience is there. You cannot destroy it now, because he has known all that can be known: how can you destroy it now? You cannot motivate him any more, all motivation has gone.
If you reach this stage – in the beginning you were a child, in the end you can become a child – your life has been a circle, complete; this is what perfection is. If you don’t reach the source again, your life has been incomplete. Incompletion is suffering. That is what Buddha calls dukkha, misery. If you are incomplete there is misery, if you are complete you are fulfilled.
A sage dies fulfilled: then there is no more birth, because then there is no need to come back to the world of experience. You die incomplete, and because of that incompleteness you have to be born again. Your being will persist, again and again, to be complete; and unless you are complete you will have to move again and again into birth, into death. That is what Hindus call the wheel of life and death. A sage jumps out of the wheel, because he himself has become a circle and now no wheel is needed.