Meditation is a form of mental exercise that promotes relaxation, focus, and awareness of the body and mind. In Psychology, meditation is defined as “a family of mental training practices that are designed to familiarize the practitioner with specific types of mental processes.” It is also seen as a spiritual practice and is more about working with the mind and training in awareness. This, in turn, leads to an improved sense of presence, attentiveness, and an increase in the value of humane emotions. However, many people claim to witness spontaneous body movements in the form of shaking, the head moving, twitches, etc. It is kind of a surprising experience and practitioner to find it very intriguing to know the reasons for the same. Some movements tend to give a prior sensation before they happen, while some happen while in deep meditation. Body movements that come up during meditation happen primarily for two reasons :
Release of tension
This is as obvious as it can get. When the body becomes deeply relaxed and drenched into meditation, muscles start to relax, and a sense of ease and comfort sets in. These can be felt in the form of twitches and small body movements such as thumb jumping or, in extreme cases, in the form of larger movements –your head might suddenly turn. These movements are not deliberately intended by the brain but are spontaneously carried out by relaxed neurons and muscles.
Increased flow of energy
Meditation is said to stimulate the pranas ( energies) of the body by channelizing them in the proper direction. Practitioners of meditation may actually feel the movement as being associated with energy. The explanation here is that deep meditation is opening up some energy pathways, and as more energy starts to flow, it can hit up against blocks. As the energy dissolves the blocks, the body may spontaneously shake or twist and turn since everything that happens in our energy field is reflected in the body.