Of immortality, the soul, when well employed, is incurious. It is so well, that it is sure that it will be well. It asks no questions of the Supreme Power.
"There is no such thing as a good influence, Mr. Gray. All influence is immoral — immoral from the scientific point of view." "Why?" "Because to influence a person is to give him one's own soul."
The Vedas teach that the soul is divine, only held in the bondage of matter; perfection will be reached when this bond will burst, and the word they use for it is, therefore, Mukti - freedom, freedom from the bonds of imperfection, freedom from death and misery.
They did not know what we can now guess at, contemplating the course of history: that change begins in the soul before it appears in ordinary existence.