Turn on means go within to activate your neural and genetic equipment. Become sensitive to the many and various levels of consciousness and the specific triggers that engage them. Drugs were one way to accomplish this end.

Tune in means interact harmoniously with the world around you – externalize, materialize, express your new internal perspectives.

Drop out suggests an active, selective, graceful process of detachment from involuntary or unconscious commitments. Drop Out means self-reliance, a discovery of one's singularity, a commitment to mobility, choice, and change.

*Unhappily my explanations of this sequence of personal development were often misinterpreted to mean “Get stoned and abandon all constructive activity”.