How to know what one must do?

The following is an excerpt from a samvaad (dialogue) session with Acharya Prashant.

Questioner (Q): So, we were talking yesterday, you were mentioning yesterday about liberation is being disassociated with the things around and keep doing what needs to be done but not assign value to stuff in life, give too much importance, to think that there is too much to do. So, generally when one has to choose the work in…