Altered states of consciousness (ISS) - a class of mental states that has recently attracted the attention of specialists from various fields of human science: psychologists, physiologists, biochemists, linguists, etc. The trance state characteristic of the daily life of a person is considered: phenomenology, structure, relationship with cognitive processes and personality properties. The specificity of everyday trance compared to "medical" is analyzed, as well as the influence of the subject's activities on his manifestations. A relationship between the intensity of experiencing a trance state and the level of development of cognitive processes, as well as personal characteristics of the subject, was revealed.