Fruitful interreligious encounter is the meeting of human beings, and calls for a metaphysics, a common humanum in order to proceed to dialogue. Rahner's transcendental method could serve as an important tool for entering into interreligious encounter. It offers a metaphysics that in its apophatic aspects has resonances with some forms of postmetaphysical thought, particularly the notion of gift. The author here pursues this idea but only after considering some critiques of Rahner's transcendental project.