What he means by the reentry period is when the peak of the experience is ending and you are starting to come down. You don't come right down, suddenly. It's a gradual process that takes hours. It's a philosophical stage. During that time, you're thinking about what has happened, it's given you a whole new perspective for the better on your life and you are considering where you want to go from here with your life. Grof is dealing not with "normal" people but with people who have psychological problems of some sort. He well understands how valuable LSD can be for treating people and helping them overcome their problems. For those interested in the use of LSD as a key part of psychotherapy, Grof's book, though difficult and with small print, is the best.

If you thought that smelling the lemon in the music was pretty wild, perhaps you should fasten your seatbelts because now we'll get into possible visual "distortions" of perception seen with the eyes open. None of the examples for now will involve changes in how one sees other people or anything involving the nature or aesthetic aspects of being outdoors. All of that will come later. We'll focus here on how you might see your body differently when looking at it, depth perception changes and some more detail and flavor about how inanimate objects can be seen. None of the situations in the following examples will necessarily happen and maybe none of them at all will happen on a given LSD trip, but any of these "impossible" things is possible.

A person might look at their fingers and instead of 10 fingers, they see hundreds of them. It's nothing to worry about. You know that it's just 10 fingers. The fingers or any part of the body can be seen as getting bigger or smaller, growing or shrinking. One finger might be getting bigger and another finger getting smaller. One hand may be a lot bigger than the other. An arm or a leg may become very very long or get so small that it's hardly there. If you stick your arm way out and make a fist, it can look like the fist is a mile away or it can look as if your nose is a fraction of an inch away the fist. Even without LSD, if you stick your tongue out, you can see a little piece of it like you can see some of your nose. When you are tripping, with your tongue sticking out, it can get so long that it will seem impossible to get it back in your mouth, but you'll be able to do it, just like the person whose body feels as if it weighs ten tons can stand up, though it doesn't seem possible.

There are other kinds of body perception changes that involve not just body parts but the entire body. One mentioned earlier was how the body can feel like it's made of any substance and that a person can even experience being that substance or being any object, such as a piece of wood. Another was how the body can feel as if it has no weight or weighs ten tons. The entire body can feel as if it's small and getting smaller or big and getting bigger.

One may perceive themselves as only 3 inches tall and try to hide behind a pack of cigarettes. If someone is experiencing being 3 inches tall, they might "worry" that someone will step on them and they will get crushed. Trying to cross the street can be too "dangerous" and the person will ask a companion to pick them up and hold them in their hand. If you see yourself as only 3 inches tall, then the room you're in and the other people will seem gigantic. It could be that you and the other people all seem to be 3 inches tall and everything else is the same or that 1 person stayed the same and you and the rest are 3 inches tall. The body image can get down to microscopic proportions where you are among the atoms and "worried" enough about falling through the spaces
between them to want to cling to someone for physical balance and stability.