It is significant that the Latin word "templum" originally meant a vast space, open on all sides, from which one could survey the whole surrounding landscape as far as the horizon. This is what is meant to CONTEMPLATE: to "set one's sights on" Heaven from the temple that defines the field of vision... The temple is the place, the organ of vision.
Meditation consists in learning to focus and to control the mind. When the mind is stilled, then the light of the intellect begins to shine. The mind is ordinarily scattered and dissipated, but gather the mind into one and then the pure light shines in the mirror which is oneself. Speech is the movement by which we go out of ourselves to communicate with another. Meditation takes us within ourselves. It is a process of inward withdrawal, a centering in the place of inner detachment, a staying of the mind upon God.