Sri Aurobindo
Letters of Sri Aurobindo
05. The Triple Transformation: Psychic – Spiritual – Supramental
Fragment ID: 2744
That is the argument1 of the Mayavadin to whom all manifestation is useless and unreal because it is temporary – even the life of the gods is of no use because it is in Time, not in the Timeless. But if manifestation is of any use, then it is worthwhile having a perfect manifestation rather than an imperfect one. “Have to 
be left willingly” is a contradiction in terms. One keeps the body as long as one wills, with an illumined will, leaves it or changes it according to the same will. That is a very different thing from a body assailed constantly by desire and suffering and death brought on by decay and illness. Always assuming that the divine manifestation or any manifestation is worthwhile.
As for the second argument2, change and progress are not excluded from the supramental life. I do not see why the change of cells, supposing it continues in the supramentalised body, takes away from the value of the transformation, if it is a change to something equally or more conscious and luminous.
1 “What is the need of transformation of the physical if, after all, willingly (if one reaches the consciousness of immortality) or unwillingly (in other cases) the body will have to be left?”
2 “Matter, especially the body cells, undergoes changes from second to second – then what value has the transformation for the body?”