There are three main reasons sentient beings perpetuate in samsara: first, clinging to impermanence as permanence; second, seeing activities that are inherently unsatisfactory as joyful; third, mistaking a non-existent self for a truly existent self. With these three forms of attachment, good and bad karma is created. With good karma, beings take rebirth in the upper realms of the gods and human beings; with bad karma, beings take rebirth in the lower realms such as hell, unable to transcend samsara and attain liberation.

Actually, the cause for liberation arises inside the self, not outside. Here we are referring not to our body but to our thoughts or mind. By overcoming the three forms of attachment, we can be free of mental afflictions and bondage; if these three forms of attachments are not eradicated, liberation cannot be attained.

How do we overcome this attachment? Not by burning incense, praying, or prostrating to the buddhas! Not by supernatural powers! The only way is to realize wisdom. Why is wisdom the only method that works? Because all three forms of attachment are basically manifestations of ignorance. Just as we use light, the opposite of darkness, to dispel darkness, we use wisdom, the opposite of ignorance, to dispel ignorance; all other methods are ineffective. Wisdom here denotes insight that fully apprehends impermanence, suffering, and selflessness. Although the practices on impermanence and suffering appear simple, they are essential to the path of liberation and must therefore be undertaken. By relying on these three types of wisdom, we can cut through the three forms of attachment that bind us to samsara. There is no reason liberation cannot be attained under the circumstance.

- Quote from The Four Seals of Dhama, "Summation"