Proprioception

One of our numerous senses besides the five we are aware of is proprioception. Simply put, our ability to maintain balance and carry out daily physical activities depends on our spatial awareness of the location of our joints. Even plants use it to control their development and form in reaction to internal and external cues, such as the wind speed.

Our ability to perceive our surroundings holistically depends in great part on the sensory receptors found in our muscles, joints, and skin, as well as information from the brain system. While a large portion of it takes place in the active brain, it also affects the subconscious brain in ways that we are yet not fully aware of. Subconscious proprioception is what causes posture, to provide just one example. We don't have to deliberately choose how to sit or stand every time we do it because of this, which is kind of strange when you think about it.