The central practice is hearing, flecting and meditating upon it. There's a whole book the place of grace in ashankeras adweta i think brian malkovski, he is a professor at Boston college or somewhere. I am gently open your eyesthis is how an enlightened person looks at the world not just in meditationex but after opening the eyes also. Use this whenever there is trouble. Actually, to use it, you have to make a habit of it. That's why nide dason is there, to stay with it.