_Knowing_

Sometimes a soul gets old and realizes all he lived for or had been doing was meaningless.

This tends him either to relive as a new version or just endorse himself into what he has been doing, so much that he tend not ponder over the realization.

This realization is the catalyst, the power within that forces it to render change. A change towards extremities.

No matter what this change has contemplated this soul's thinking atleast once. And that spark itself is nirvana. It always convinces a change. The soul's purpose would be to rendition or to do as he has. But with the "knowledge of".

That "knowledge of" the "knowing" is what I think is required, so as to fulfill the purpose of life. Mind you that sometimes that stage of Nirvana is and has always been considered the end. That there is nothing beyond it. Could be, but life gets too boring after. And thus comes immortality.