The Law of Vibration

One of the fundamental laws of the universe seems to be the law of Vibration. It says that almost everything moves, and nothing remains constant. Humans basically exist in a system of motion. When brain cells get activated, they set up a vibration in the body. Therefore, to move the hand, one needs to trigger brain cells to move the body, or the hand would not move. Brain-body coordination is always essential.
Vibration is indeed a mechanical process that causes oscillations around a point of equilibrium. The term originates from the Latin word, vibrationem (to shake or quiver). The oscillations can be regular, such as a pendulum's motion, or casual, such as rolling of tires on a gravel road. To illustrate further, the motion of a tuning spoon, the reed in a music instrument like piano, a mobile device, or the funnel of a loudspeaker are suitable for Vibration.
Almost everything seems to vibrate through an external force.