四無量心通於有漏同無漏，同七覺支ㄧ齊修行，可達到解脫。天台智者認為，四無量心可對應四禪定嘅境界。悲無量心，對應初禪。喜無量心，對應二禪。慈無量心，對應三禪。到四禪時，就要採取捨無量心。
The four immeasurable minds are through the existence of leaks and non-leaks, and the practice of the seven consciousness branches together can achieve liberation. The Tiantai sages believed that the four immeasurable minds correspond to the four realms of meditation. The immeasurable heart of compassion corresponds to the first Zen. Joy immeasurable, corresponding to the two Zen. Compassion is immeasurable, corresponding to the three meditations. When you reach the four meditations, you have to take the immeasurable mind.