觀無量壽佛經義疏 3.13

3.13

"‘The Buddha shall now analyze and explain for you the Dharma for eliminating suffering and affliction.’" The many sufferings of Sahā cannot be escaped without the contemplation-of-the-Buddha samādhi; thus it is called the teaching for escaping suffering. The three realms are the vessel of suffering, and the six destinies are the retribution of suffering. Third, repeating the entrustment.