You may be interested in learning about cognitive psychology and neuroscience. It's the branch of psychology that focuses on the question of how the brain work

You may be interested in learning about cognitive psychology and neuroscience. It's the branch of psychology that focuses on the question of how the brain works. One part of the science involves studying people who have had parts of their brains damaged through illness or accident; one of its overall findings that many people find surprising is what little pieces our brains functionality is broken down into. For instance, there are portions of your brain which match the emotional feeling to the visual input; when this system is damaged, you look at your family and feel nothing. (This in turn leads to a belief that your family has been replaced by impostors -- they look the same and sound the same but feel difference.) Relevant to your drug trip, there are also parts of the brain responsible for "the feeling that your are in your body". When these parts of your brain are inhibited -- for instance, by a drug -- you feel detached from your body. All of which is to say, you may find it interesting to study how your mind works from the outside looking in, through cognitive psychology, instead of from inside looking out during a drug trip :-)