According to Chapter 52, what is the root cause of suffering and the cycle of birth and death, and what is the prescribed remedy?

In its retrospective review, Chapter 52 identifies the fundamental cause of all calamities as 'error' and a 'lack of focus on the true Self,' which in turn leads to the cycle of birth and death. This error manifests as 'delusion' or 'false knowledge'—specifically, the pride of the Self in that which is not the Self, a state the learned characterize as death. The prescribed remedy, as stated in the chapter, is for those who desire liberation to 'connect with the feet of the Guru through continuous remembrance and devotion.' This path leads to the dissolution of duality, much like a river forgets its river-ness upon embracing the ocean.