daydream

Daydreaming is a stream of consciousness that detaches from current external tasks when one's attention becomes focused on a more personal and internal direction.
Various names of this phenomenon exist, including mind-wandering, fantasies, and spontaneous thoughts. There are many types of daydreams – however, the most common characteristic to all forms of daydreaming meets the criteria for mild dissociation. In addition, the impacts of the various types of daydreams are not identical. While some are disruptive and deleterious, others may be beneficial to some degree.
The term daydreaming is derived from clinical psychologist Jerome L. Singer, whose research created the foundation for nearly all subsequent modern research. The terminologies assigned by modern researchers brings about challenges centering on identifying the common features of daydreaming and building collective work among researchers.

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