Tea’s useful edge during meditation
Long meditation sessions demand alertness without much movement or conversation. Tea offered a modest stimulant in a form that could be prepared and sipped; its caffeine could make drowsiness less forceful while a monk continued sitting. The effect did not create energy from nowhere or erase the need for sleep. It temporarily reduced one signal that helps the brain register accumulated wakefulness.
What the bitterness did—and did not—mean
Tea’s bitter taste comes from several compounds, including caffeine and naturally occurring plant chemicals. But bitterness is not a reliable measure of how strongly a cup will keep someone awake: the effect depends on how much caffeine reaches the drink, how much is consumed, and how an individual responds. Brewing tea for longer can draw more compounds from the leaves, changing both flavor and strength.
That made tea a practical aid, not a substitute for rest. A cup could help a meditator remain attentive through a session, but as its caffeine effect faded, the body’s underlying sleep pressure remained. The memorable tradeoff is that a bitter cup could quiet the feeling of sleepiness for a while without paying back any sleep.
