Moksha is the ultimate goal of Hindu spiritual life — liberation from Samsara, the cycle of birth, death, and rebirth. It represents the soul's (Atman) realization of its true nature and union with or closeness to the Supreme Being (Brahman). Different Hindu schools describe Moksha differently: Advaita Vedanta sees it as realizing the identity of Atman and Brahman ("Aham Brahmasmi"); Vishishtadvaita sees it as eternal communion with God in Vaikuntha; Dvaita sees it as eternal bliss in God's presence while remaining distinct. Four main paths to Moksha are described: Jnana Yoga (knowledge), Bhakti Yoga (devotion), Karma Yoga (selfless action), and Raja Yoga (meditation). Moksha is the fourth and highest Purushartha (goal of life), after Dharma, Artha, and Kama.