The sense, one of most general concepts describing processes of knowledge and work of consciousness on the whole. In it in the concentrated type the variety of spiritual conditions of the person is represented. The given work can be considered as research of the appendices which are taking place in the scientific literature, concepts about sense, to the analysis of processes of knowledge, teaching and the doctrine. In the book the content of concept 'sense' is considered; varied circumstances of knowledge and training in which the sense is defined, as well as the specific cognitive procedures assisting formation of semantic structures in processes of knowledge and training.