The transpersonal is a term used by different schools of philosophy and psychology in order to describe experiences and worldviews that extend beyond the personal level of the psyche, and beyond mundane worldly events. It has been defined as experiences "in which the sense of identity or self extends beyond (trans) the individual or personal to encompass wider aspects of humankind, life, psyche or cosmos". The field of Transpersonal Psychiatry has defined the term as "development beyond conventional, personal or individual levels." It is related to the terminology of peak experience, altered states of consciousness, and spiritual experiences