Hinduism is the world's oldest extant religion with over a billion followers. It originated in India and is characterized by the concepts of samsara (the cycle of birth, death, and rebirth), karma (the effects of one's actions), and moksha (liberation from samsara). Hindus believe in one absolute being Brahman that has multiple manifestations, including personal gods. The Vedas are Hinduism's most important religious texts. Hindus seek to fulfill religious, success and pleasure-oriented aims through different life stages and spiritual practices, with moksha as the ultimate goal.