What are the functions of various Buddhist scriptures?

Therefore, the Heart Sutra is called "thinking", and the heart is the teacher, which concisely explains the relationship between the mind and the phases. Only knowledge is the essence and can enlighten people's wisdom.

The New Port Classic is an important classic, in which the Buddha and Xu Bodhi demonstrated that all phases are empty. To sum up in three words is no phase. Dealing with the World Bank with knowledge can guide many problems in the process of cultivation.

The original chanting of the scriptures by the Tibetan King Bodhisattva talked about the merits and interests of the Tibetan King Bodhisattva, and it also involved the practice of chanting Buddha, and there was a certain space to guide the horror of life and death karma and how to avoid ignorance and create heavy karma. It also reveals the correct way to deal with the dying. This is a Mahayana classic that is closest to real life, and it is very rare.

Generally speaking, these three classics are purely personal opinions. Amitabha!