Rigveda
The Rigveda (Sanskrit: ऋग्वेद ṛgveda, a compound of ṛc "praise, verse" and veda "knowledge") is an ancient Indian sacred collection of Vedic Sanskrit hymns. It is counted among the four canonical sacred texts (śruti) of Hinduism known as the Vedas. Some of its verses are still recited as Hindu prayers, at religious functions and other occasions, putting these among the world's oldest religious texts in continued use. The Rigveda contains several mythological and poetical accounts of the origin of the world, hymns praising the gods, and ancient prayers for life, prosperity, etc.
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