The article is dedicated to the memory of outstanding philosopher M. K. Mamardashvili. The author has had the privilege to cooperate with him in consciousness problems' investigation. Uncomplicated enough structure of consciousness is proposed comprising four components: meaning and sense (the first level), biodynamic and sensoric matter (the second level). Some properties and interactions of these components (possibility of observation, mutual transformations, transmutations, phase transitions) are described. The possibility of consciousness flow structuring in connection with the new tide of anticonstructivism is discussed. Proposed structure can be differentiated and possesses of the potential for the explanation of the real consciousness phenomena variety.