Day 3 covers the first half of Chapter 2, Expedients.
Having last month covered the departure of the twigs and leaves, Śākyamuni tells Śāriputra the purpose of the various teachings.
The Buddha said to him:
“The Buddhas, the Tathāgatas, expound this Wonderful Dharma as rarely as the udumbara-flower blooms. Śāriputra! Believe what I am going to say! My words are not false.
“Śāriputra! The purpose of the various teachings that the Buddhas expound according to the capacities of all living beings is difficult to understand. I also expound various teachings with innumerable expedients, that is to say, with stories of previous lives, parables, similes and discourses. [The purpose of the various teachings of the Buddhas is difficult to understand] because the Dharma cannot be understood by reasoning. Only the Buddhas know the Dharma because the Buddhas, the World-Honored Ones, appear in the worlds only for one great purpose.
“Śāriputra! What is the one great purpose for which the Buddhas, the World-Honored Ones, appear in the worlds? The Buddhas, the World-Honored Ones, appear in the worlds in order to cause all living beings to open [the gate to] the insight of the Buddha, and to cause them to purify themselves. They appear in the worlds in order to show the insight of the Buddha to all living beings. They appear in the worlds in order to cause all living beings to obtain the insight of the Buddha. They appear in the worlds in order to cause all living beings to enter the Way to the insight of the Buddha. Śāriputra! This is the one great purpose for which the Buddhas appear in the worlds.”
It was only recently that I came to truly appreciate that purpose – the one great purpose – of the Buddha’s teaching is “to cause all living beings to obtain the insight of the Buddha.” We’re not just trying to get to heaven or escape from misery. “They appear in the worlds in order to cause all living beings to enter the Way to the insight of the Buddha.”