"Ketamine's other measurable effects on the body include rapid-eye movements, salivation, and the production of brainwave activity mimicking that of a dream state. So. if you look at the facts, you'll see what we have here is a safe, highly effective, and extremely repeatable means of inducing a lucid dream state at will. When administered in the correct dose, Ketamine is a lucid dream enabler (LDE). It gives you all the trappings of being asleep and in full dream mode, but all the while you remain awake and fully conscious. "

This came from there:
http://www.erowid.org/chemicals/ketamine/r...project_1.shtml