Kotisimbali Jataka

The Buddha told the Kotisimbali Jataka, No. 412 of the Pali Jataka Nikaya, at Jetavana for the benefit of five hundred monks who had confessed to being troubled by lustful thoughts. He told them that faults surround a person the way a strangling banyan or fig gradually surrounds the tree that first let it take root, and then related how a tree spirit had once understood this danger long before it had any chance to grow.

In the days when Brahmadatta ruled Benares, the Bodhisatta was born as the spirit dwelling within a great kotisimbali, a silk-cotton tree towering in the Himalayan forest. Its vast canopy sheltered countless birds, and the spirit who lived within its trunk watched over it with quiet, constant attention.

A mighty roc, a garuda so immense that its wings spanned a hundred and fifty leagues (an old unit of distance, each league roughly three miles), swept down upon the ocean and seized a great serpent-king a thousand fathoms long (a fathom being roughly the span of a person's outstretched arms, about six feet). As the roc carried him up into the sky, the serpent-king desperately caught hold of a banyan tree growing nearby, gripping it with all his remaining strength in a last effort to escape.

The roc was undeterred. Rather than let the serpent slip free, he simply lifted banyan tree, serpent, and all together, carrying the whole tangled weight through the air until he reached the great silk-cotton tree, where he settled to feed. There he ate the fat of the captured serpent-king and let the rest fall away beneath the branches.

Among the banyan's former residents was a small bird that had sheltered in its branches before the tree was torn loose and carried off. Having lost its old home, the bird now flew up and settled instead among the upper boughs of the great cotton tree where the roc had just finished his meal.

Watching this small bird settle into the canopy, the tree spirit who was the Bodhisatta began to tremble with fear, weeping at what he saw. He had shown no distress at all when the roc arrived bearing an entire banyan tree and the body of a great serpent, yet this one small bird filled him with dread.

The roc-king, puzzled by this reaction, asked the tree spirit why he had stayed calm in the face of a serpent a thousand fathoms long and a banyan tree torn bodily from the earth, yet now shook with terror over a single small bird perched quietly on a branch.

The tree spirit explained that the serpent's flesh and the banyan's wreckage, however massive, could do the great cotton tree no lasting harm. A bird, though, feeds on fruit, and in time it would leave behind seeds in its droppings, exactly the kind of seed from which a banyan or fig takes root. Left where it was, that bird would eventually seed a parasitic growth that could spread across the whole tree and, given enough years, strangle and bring down even so vast a giant.

Hearing this, the roc-king recognized that fear placed where it truly belongs is not cowardice but wisdom. Using his great power, he drove the small bird away from the cotton tree at once, removing the danger before it ever had the chance to take root.

When the Buddha had finished the story, he identified its characters for the five hundred troubled monks. The roc-king who heeded the tree spirit's warning and acted on it without delay was Sariputta in that former existence. The tree spirit who recognized the true danger in what looked like a harmless bird was the Buddha himself, present even then as the Bodhisatta.

By comparing the monks' lustful thoughts to that same small bird settling quietly into a great tree's crown, the Buddha taught that what looks too slight to matter can still take root and spread until it brings down something far greater than itself. The Kotisimbali Jataka preserves this not as a tale about trees or rocs for their own sake, but as a lasting reminder that distrust is entirely proper when it is aimed at the small beginnings of a danger that would otherwise be left to grow unchecked.