The smoke rises. The sadhu watches it go.

This is a small ritual. A clay chillum, a thumb of resin, a match struck against the fold of his blanket. The breath that follows is not for pleasure and not for show. It is an offering, to a god who, tradition says, wandered the world cold and hungry and took the plant into himself for warmth.

In Nepal the plant has four names. Bhang is the cool milk drink, passed from hand to hand at festivals. Bhango is the leaf, ground and mixed. Ganja is the flower, smoked in clay pipes. Charas is the resin, the dark, hand-pressed ovals that travelers in another century would come to call temple balls. Each name is a different use. Each use is a different kind of prayer.

The most visible expression survives in plain sight. Once a year, on the night of Maha Shivaratri, devotees gather at Pashupatinath in their hundreds of thousands. Sadhus, ash-smeared, dreadlocked, almost naked in the winter cold, smoke publicly. The smoke is not a transgression. It is the point.

That single night, when the state looks away and the ritual resumes at full volume, is the one tolerated exception to today's prohibition. It is also a living fossil: a reminder that, in living memory, the entire year used to look like this.