This essay is a try to present the Trikāya doctrine in Māhāyāna Buddhism as a model for a transcending theology that can help those who are living with a “dual Buddhist-Christian religious identity” to overcome conflicts between Buddhism and Christianity. By the Trikāya doctrine we can reach a deeper understanding of the mystical awakening to “Buddha beyond Buddha” (or “God beyond God” as some of the mystics tried to explain); i.e. the transpersonal Dharma and the transpersonal Logos beyond the limited individuals of Gautama and Jesus who both fully realized God as spiritual qualities in body, speech, actions and mind. The point is that we do not need to choose between the Buddha or Christ; instead we can look at them both as living examples of the realization of what Paul Tillich called the “Ultimate Concern” and “Being”.  And probably we can use this model for most religions.