坐禪三昧經 1.71

1.71

初學息時，若身懈怠、睡眠、體重，悉除棄之！身輕柔軟，隨禪定心受喜，亦念息入出。除懈怠、睡眠、心重，得心輕柔軟，隨禪定心受喜。

"When first training in the breath, if there is bodily indolence, torpor, or heaviness of the limbs, one completely removes and abandons them! The body becomes light and supple, and following the mind in dhyāna-samādhi, one experiences joy, also being mindful of the breath entering and exiting. Removing indolence, torpor, and heaviness of mind, one attains lightness and suppleness of mind, and following the mind in dhyāna-samādhi, one experiences joy."