Shivaratri and Pradosham: Why Night, Why Twilight, Why Monday
The Shaiva calendar in practice
A hunter named Chitrabhanu, lost in the forest on a moonless night, climbs a bilva tree and stays awake till dawn. He does not know it is Shivaratri. Leaves fall on the Linga below. The lesson uses his story to explain why Shivaratri is observed at night, why Pradosham falls at twilight, and why Monday belongs to Shiva.
The Hunter on the Bilva Tree
On the fourteenth night of the dark fortnight of the lunar month of Phalguna, sometime in the early Puranic period, a Shabara hunter named Chitrabhanu had wandered too far into the forest along the banks of the Narmada. He had killed nothing all day. The sun had set. He had not eaten. He had not drunk water. He had a wife and small children waiting in the village, and his arrows in the quiver had not been loosed.
A tiger appeared on the path. The hunter dropped his bow and climbed the nearest tree. The tree was a bilva, the three-leafed tree the Shaiva tradition holds as Shiva's own. The tiger settled at the foot of the tree and waited. The hunter, perched on a low branch, knew that the moment he closed his eyes the tiger would have him. To stay awake, he began doing the only thing his hands could do in the dark. He plucked bilva leaves, one by one, and dropped them.
Below him, hidden under a thick layer of fallen leaves and forest earth, stood a small Shiva linga that the hunter could not see and did not know existed. Each leaf the hunter dropped, all night, fell on the linga. He did not bathe before the act. He did not chant any mantra. He did not know what he was doing.

By dawn, the tiger had left. The hunter climbed down. The Shiva Purana, in the Vidyeshwara Samhita, records the next moment with great care. Shiva himself appeared at the foot of the tree, embraced the man, and said the unbroken vigil that had begun in fear and ended in dawn was the most complete Shivaratri vrata anyone had performed. Chitrabhanu was given moksha on the spot. The night he had spent on the bilva branch became the canonical origin of the Shivaratri vow that, two thousand years later, several hundred million Hindus across the world will keep this very year.