Vast increase in creativity becomes apparent as the natural brain filter is bypassed. Some mild hallucinations such as rivers flowing in wood grained or 'mother of pearl' surfaces. Closed eye hallucinations become 3 dimensional. Destruction or multiple splitting of the ego. Some loss of reality.
Time becomes meaningless.
Out of body experiences and esp type phenomena. Blending of the senses. The senses cease to function in the normal way. Total loss of ego. Merging with space, other objects or the universe.