[T]he son improved his mental attitude by stages. As Great Master Chih-i put it, the parable illustrates how Sakyamuni presented the truth in stages, giving us (1) the Garland Sutra [Avatamsaka-sutra, wherein the Buddha’s enlightenment is seen as too dazzling for most people to understand], (2) the Agama sutras of the Lesser Vehicle, wherein we enter the path of labor and discipline, (3) expanded sutras according to people’s capacities [Vaipulya], (4) the Wisdom sutras [Prajna-paramita], and finally (5) the Lotus Sutra, which makes us all children and heirs of the Buddha. Buddhism as a whole consists of these five stages of teachings. It could be said that the son’s fainting dead away upon first seeing his wealthy father suggests the ignorance of the “hearers,” who, according to the Garland Sutra, were unable to appreciate this highest and most difficult teaching among the five.