The Buddha enumerates the effluents (asavas) of our mind as
- sensual pleasures
- craving for existence and
These effluents keep the wheel of samsara turning. The friction of samsara keeps dukkha heating up the world.
The best place to start is simply noticing, being mindful, of sensual pleasure. Notice when the self stakes its claim, but also notice when the self seems to drift away for a moment. Notice when you are on automatic pilot and ignor-ing the Buddha's teachings on ignor-ance.
Ever so slowly, you can cut down the effluents, and enjoy the calm and wisdom of self-less-ness.