18. The fruit of practicing a brahmacarya life would be liberation from which one doesn’t backslide, hence a stable and permanent condition for the one who has attained it. On the other hand, if the jīva is actually permanent, invariant, unchanging, eternal, then it could undergo no changes or progress toward liberation, hence rendering the religious pursuit (brahmacarya) impossible. The jīva would remain unaffected by all actions and changes in conditions; nothing could affect, improve, or influence it.