Where does yoga come from?
Sanskrit is kind of a language. It is the first language of human society, to communicate with symbols and sounds. Ho and hey. The used alphabet symbols such as : and then when they translated the symbols to sounds it became : = a.
Parshana means philosophy or observations. Observe with a neutral way, a medium path.
Yoga philosophy, in Sanskrit it was Yuj and this word changed over time. First to Yog and later to yog: and to yoga.
Yoga means union, but also united, unification, unity, add, add together, combined and combination.
There are three main values in yoga
✦ Body (we see) -> the physical body
✦ Mind (we feel) -> mental body
✦ Soul (we think) -> spiritual body
Yoga is the uniting of these bodies. Combining body to mind, and mind to soul.
A union when we do physical exercise (asana), to the mind where we train the mental body (Pranayama) to receive realizations of the soul (meditation).