All negativity is caused by an accumulation of psychological time and denial of the present.
Eckhart TollePersonally, I don't teach practices as such. The power of the teaching is sufficient without needing to go for any practice.
Eckhart TolleThe joy of Being, which is the only true happiness, cannot come to you through any form, possession, achievement, person, or event - through anything that happens. That joy cannot come to you - ever. It emanates from the formless dimension within you, from consciousness itself and thus is one with who you are.
Eckhart Tolle