Many of the inducing methods use as a starting point techniques designed to improve the novice's powers of relaxation, imagery, and concentration. The ideal state appears to be one of physical relaxation, or even catalepsy, combined with mental alertness. One of the easiest ways to relax is to use progressive muscular relaxation. In outline this technique consists of starting with the muscles of the feet and ankles and alternately tensing and relaxing them, then going on up the muscles of the calves and thighs, the torso, arms, neck and face, until all the muscles have been contracted and relaxed. Done carefully this procedure leads to fairly deep relaxation within a few minutes, and with practice it becomes easier.
Relaxation usually leads to state of paralysis or catalepsy.
When you go to sleep, your brain deactivates the mechanism by which you are able to use your limbs, so that you become incapable of physical activity corresponding to your dream images when you dream. Quite a few people have found themselves in this paralysis state as soon as they have gotten up after sleeping. The first type of paralysis, known as 'type A,' is a condition encountered when approaching a deeper layer of consciousness from a light trance state. The second, type B paralysis, is the reverse of type A, in that it happens during the return home to physical reality. I am feeling groggy, absolutely.