Shri Rudram is most often described as an ancient Vedic hymn, or stotra, found in the Krishna Yajur Veda. Sometimes referred to as a mantra (albeit a long one), Shri Rudram is sung or recited in homage to Rudra, a Hindu deity associated with, and in some traditions considered, an incarnation of Shiva. Rudra is the god of wind, storms and the hunt.
Shri Rudram is derived from the Sanskrit shri, meaning “radiant” or “auspicious,” and is often used as a title of respect. Rudra means “howling” or “roaring”; hence, Rudra’s nickname as the howler or the roaring god.