I have been hypnotized and use self hypnosis almost daily, but I do not smoke marihuana. If you are asking is because you had an experience that was scary to you or to a friend. Many indians used marihuana or other herbs to experience hallucinations, so maybe is easier to see hallucinations when stone and hypnotized. Contrary to what many say, marihuana can be harmful, but less rapidly and less agressively than other drugs. It can trigger psychosis in some individuals, and have an effect in your motivation and in your short term memory. People who smoke frequently, especially young, do not feel like going to work, or to study, and do not even realize that is the marihuana post effect. There are lots of research done by psychologists.