Ketamine is a dissociative anaesthetic, it's generally used for veterinary purposes. Because of this, it produces a dissociative experience in us too, sort of separates the mind from the body. It produces dreamy thinking and a slowing of time. This allows you to see the world and your experiences in a renewed light; mainly it gives you the opportunity for personal analysis and thinking. Also because it slows your bodily movements: gravity, balance, and walking all require intense concentration. You really only have time to sit there and think, you are in a k-hole. You are completely removed from your surroundings and your body. people experiences differ and it depend on the dosage and the way you do it, but I have found that a lot of people talk of revelations and being in alternate planes of existence. It definately provides an experience like few other drugs and can be frightening to new users. Also make sure you do not mix it with heavy alcohol, because since both are depressants you could easily fall from your somber state in to unconsiousness if you are not careful. Hope that helps i havent tried Vicks, but I think it is just that it helps increase your already heightened senses