The way to know the truth.

How can I know the truth and how do I build the lies. Before that what kind of truth you wanna know. The self is deeper than mind, and the mind is deeper than world.

If I continue the four domains.

I wanna know the truth about the mind first. then I wanna know the truth about relationships, then I wanna know the truth about the work. and health.

To know the truth about my mind and myself, I can do this with awareness, I can verify the truth that other people found. and once you know the truth how can you practice it?