What is Matcha? It is a green powder, exactly in Japan, ‘matcha’ means powdered tea. It began to be drunk in China during the Song Dynasty (960-1279).
In that period, there was a large wave of Japanese immigrants traveling to China to learn a new form of Buddhism.
That is, the Chan Buddhism we know today as Zen Buddhism.
It seems that this form of Buddhism makes use of meditation in its ritual and religious practices.
Buddhist monks have long discovered that tea helps keep the mind alert.