What and how is to practice.

The practice is basically to let go of any thing that comes up inside. and learn to be able to be comfortable with any emotions that comes up inside.

And direct your intellect in a meaningful direction. From morning to evening for enquiry, learning, and problem solving. practice. Another good use of intellect is to change the mindset.

Use your will to do this, get to the point where you can do this morning to evening.

This is the practice basically. Practice it daily.