摩訶止觀 2.57

2.57

Furthermore, contemplating that the four movements are equal to empty space is 'eternity'; not receiving the four movements is 'bliss'; not giving rise to karma on account of the four movements is 'self'; being unstained by the four movements is 'purity.' These are the four movements of the Buddha-Dharma. Although the four movements are thus empty, within emptiness one completely sees the various four movements, even ubiquitously seeing the Buddha-Dharmas numerous as the sands of the Ganges, accomplishing the Mahāyāna. These are the four movements of provisional designation.