Vibration refers to mechanical oscillations about an equilibrium point. The oscillations may be periodic, such as the motion of a pendulum, or random, such as the movement of a tire on a gravel road. Vibrations are closely related to sound, which takes the form of "pressure waves." These waves are generated by vibrating structures, such as vocal cords, musical instruments, and loudspeakers. The same waves can induce the vibration of other structures, such as the ear drum.
Many types of vibrations are deemed undesirable, as they waste energy and create unwanted sounds, which we call noise. For example, the vibrational motions of engines, electric motors, or any mechanical device in operation are typically unwanted. Such vibrations can be caused by imbalances in the rotating parts, uneven friction, the meshing of gear teeth, and so forth. Careful designs are needed to minimize unwanted vibrations.
From a Unification perspective, several points can be made:
- The study of vibrations has led to an understanding of periodic motions, random motions, various types of sounds, and so forth. This understanding demonstrates that the external behavior of the materials involved is governed by invisible physical principles. Unification Thought points out that all entities have these two dimensions: An internal, invisible dimension (corresponding to the invisible principles); and an external, measurable dimension. These two dimensions form a complementary pair, and both are needed for each entity to exist and function.
- Through the study of vibrations, we manifest intellectual and creative capabilities that are far superior to those of any other species in the natural world. These faculties of intellect, creativity, and responsible action are connected to our spiritual dimension, which other species lack. In addition, they give us the ability to exert stewardship over the created world, an ability that is part of God's blessing to humanity.
- The contribution of vibrations to the larger world of nature is a reflection of the nature of the Creator, who is committed to living for the benefit of all of creation. One lesson people can learn is that they too need to develop generosity of spirit and live for the sake of others. As people grow in their ability to bring God's love to others, humanity can create the climate in which others can experience and express God's love as well. In this manner, people can create an environment of peace and happiness in the world.