四無量心起源自無量心三昧，釋迦牟尼佛以無量（巴利 appamāṇa，梵文 apramāṇa）來形容四梵住，喺觀想中，將四梵住嘅心態，擴展到一切眾生身上。
The origin of the four immeasurables originates from the immeasurable samadhi, and Shakyamuni Buddha described the four Brahmanas as immeasurable (Pali appamāṇa, Sanskrit apramāṇa), and in his visualization, he extended the state of mind of the four Brahmanas to all sentient beings.