The belief that we are a body and the mind that are somehow connected to each other but basically independent is a deeply ingrained concept in our culture. Starting from Platonic idea that true reality exists an abstract world of concepts, and “modernized” by Descartes, in the 1600s, it is a mainstay of popular thinking. However, it is wrong.
In activity, we react as a single organism: we take in information through our sensory systems, the process that information in the central and peripheral nervous systems, and then we act through motor control.
Here is an experiment: raise your arm. now, did your mind do it, or did your body do it? It was you who performed the action, not your body and not your mind, but you.
Here is another: make an exaggerated frowny face.
Do you feel frowny?
Imagine you are about to give an important presentation in front of your boss.
Do you feel your neck tightening?
Did your voice change?
Any “gut” reaction?
The point is, when we react to and interact with the world, there is no use in trying to divide ourselves in ‘body‘ and ‘mind‘. Just so, in the Alexander technique, we learn improved use of the self, period.