Puja is a worship ritual performed by Hindus, Buddhists and Jains to offer devotional homage and prayer to one or more deities, to host and honor a guest, or to spiritually celebrate an event. It may honor or celebrate the presence of special guests, or their memories after they die. The word pūjā is Sanskrit, and means reverence, honor, homage, adoration, and worship. Puja, the loving offering of light, flowers, and water or food to the divine, is the essential ritual of Hinduism. For the worshipper, the divine is visible in the image, and the divinity sees the worshipper. The interaction between human and deity, between human and guru, is called darshan, seeing.