We make things so hard for ourselves: we need purpose to give our activities importance, hope to give us future, and suffering as a stepping stone. We say "every day in every way, I'm getting better and better." All our actions are "for" and "because".
Why so much effort? The sage requires no such "purpose". He knows nothing of the love of joy or the fear of suffering - yet he knows all. He makes not the slightest effort to improve himself: his nature is unchangeable.
The one who doesn't change is either the wisest of the wise, or the dullest of the dull.