Thai Buddhist blogger Pongsathorn discusses his discovery of two kinds of samatha, or “coercion of our intention to do one single activity.” There is intentional samatha and unintentional samatha. Engaging in both exercises different aspects of the mind, so doing both is beneficial for the spirit. “For samatha without intention, while “observing the mind,” the mind may feel tired, if so, the mind will rest in emptiness by itself.”