For instance man is capable of ' free' ideation because he can ( freely' remember. He cannot sit and consider that which he cannot recall. On the other hand man can, and does, act upon an idea which he has never even made explicit in consciousness. idea' was sufficiently" in consciousness" to affect action, but not to ensure its own reproduction nor even its conveyance to others. To be able to communicate an 'idea' to another in verbal language consciousness must be , explicit,' one's awareness must be definite and differentiated-each element in the general impression must be distinguished and held apart. We know the difficulty of "having an idea," but being unable to express it. But we also know that we can, and do, act upon it when it is in that undifferentiated and implicit state. And we know that state; it is a common human experience.