Chapter 5: The Parable of the Medicinal Herbs

The Buddha affirms the understanding expressed by the four great disciples and offers another parable to deepen the teaching. He describes a vast cloud that gathers over the entire world and releases its rain equally upon all the land. The rain falls without discrimination upon mountains and valleys, forests and fields, and upon every kind of plant -- small herbs, medium herbs, great herbs, small trees, and great trees. Each absorbs the moisture according to its own nature and capacity, yet the rain that nourishes them is one and the same.

In the same way, the Buddha explains, the Dharma he preaches is like this single-flavored rain. It falls equally upon all beings -- gods, humans, asuras, and every class of sentient life -- yet each receives and benefits from it according to their own capacity and disposition. Some attain the fruit of the voice-hearer, some of the pratyekabuddha, and some advance along the bodhisattva path. But the teaching itself is of one taste: the taste of liberation.

The Buddha emphasizes that only the Tathagata can see the true nature and capacities of all beings, just as only the cloud can water all plants simultaneously. While the plants themselves do not know one another's natures and remain unaware that they are nourished by the same rain, the Buddha perceives the unity beneath the apparent diversity. This parable reinforces the principle that the various teachings are not fundamentally different in their purpose but reflect the single compassionate intention of the Buddha adapted to the needs of all.