Mysticism encompasses religious traditions of human transformation aided by various practices and religious experiences. Popularly, mysticism is used synonymously with mystical experience, a neologism which refers to an ecstatic unitive experience of becoming one with God, the Absolute, or all that exists.
Scholarly research since the 1970s had questioned this understanding, noting that what appears to be mysticism may also refer to the attainment of insight into ultimate or hidden truths, as in Buddhist awakening and Hindu prajna, in nondualism, and in the realisation of emptiness and ego-lessness, and also to altered states of consciousness such as samadhi.
