Nirvana is considered the ultimate happiness by Buddhism. Upon achieving enlightenment, Buddha is said to have achieved the state of nirvana. Nirvana, according to Buddhism, is freedom from desire, jealousy, attachment and ignorance.
Hinduism defines the state of nirvana as spiritual liberation, or moksha. According to Hinduism, all are Brahman (Absolute Reality) within. Brahman elevates the soul to the state of nirvana. Hinduism recommends Karma yoga, Jnana yoga and Bhakti yoga as paths that lead to nirvana.
Nirvana is considered the highest objective by Jainism. The religion recommends principles including ahimsa, satya and aparigraha to be relieved of one's karma and, subsequently, achieve nirvana.