Who Rudra is
Rudra is the god the Vedic poets were afraid of.
Most hymns of the Rigveda invite a god to come closer. The hymns to Rudra ask him to keep his distance. He is an archer with a firm bow and swift arrows, and what the singers want most is for those arrows to land on somebody else. "Do not harm us, great or small," they say. "Do not harm our children, our cattle or our horses. Let your arrow pass us by."
Yet the same hymns call him the best of all physicians. His hand is full of healing herbs, and he has a thousand medicines. The singers beg him for a hundred winters of life. For the Vedic poets, the one who sends the sickness is also the one who can take it away.
They describe him clearly. His hair is braided, his colour is tawny, and he wears gold. He is young and fierce, and he rides in a chariot. He is the father of the Maruts, the storm gods who race across the sky.
He is not one of the great gods of the Rigveda. Only three whole hymns out of more than a thousand are his. He stands at the edge of things. The later Vedic books place him in the mountains and the north, and they tell again and again how the other gods tried to leave him out of the sacrifice, and what it cost them.
Let your arrow pass us by, Rudra. You have a thousand medicines.