A commentary on Vajrasattva meditation and recitation as a purification practice.

To eliminate suffering and obtain happiness, the most important thing is to have a good heart

A teaching on the four opponent powers, a practice that purifies negative karma and obscurations

This commentary includes advice on combining the practice with prostrations and lamrim meditation.

The karmic results of nonvirtuous actions are experienced in this life or in future lives, unless we purify the negative karma.