The term hypermnesia comes from the Greek word "mnesis", which means memory. It is the opposite of amnesia, meaning an increased ability to remember. In relation to hypnosis, hypermnesia occurs when the client remembers something during the trance that he was not consciously aware of or could not recall even in the conscious mind. The reasons for this can be different, which is why some things seem to be forgotten. Hypnosis can, if it can be helpful for the change process, use this hypermnesia to uncover and process. A strengthened ability to remember can also help to take new perspectives and thus to add important and decisive building blocks from events and thus to rewrite one's own history in a positive way.