+An **altered state** is a temporary deviation from a person's usual waking [Consciousness](/wiki/consciousness), where the sense of self or [Reality](/wiki/reality) shifts significantly. These states can arise from diverse origins, leading to unique experiences of perception and cognition.
+## See also
+- [Dream](/wiki/dream)
+- [Hypnosis](/wiki/hypnosis)
+- [Meditation](/wiki/meditation)
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