The Nirmanakaya is for the Buddha to communicate with ordinary people. Although Buddha-nature exists within the mind of every sentient being, the Dharmakaya (Truth Body) of the Buddha is rendered powerless to those who have not attained realization and thus must rely on the Nirmanakaya and the Sambhogakaya of the Buddha for guidance to enlightenment. However, neither the Nirmanakaya nor the Sambhogakaya is the true Buddha, only the Dharmakaya, the union of wisdom and compassion, is.

- Quote from The Right View, "Buddhism—the Definition"