A theological concept describing the reciprocal presence and interpenetration that characterizes both divine trinitarian life and authentic human relationships, where parties exist within one another without loss of distinct identity. Grounded in Johannine language of divine-human and human-divine indwelling, mutual indwelling provides foundation for understanding relationship beyond both external proximity and absorptive unity. This concept offers theological alternative to instrumental relationships by establishing genuine presence as constitutive of authentic communion. Mutual indwelling supports
Interindependence by demonstrating how persons can exist within relationship without losing their particularity, directly challenging
Practical Atheism’s reduction of relationship to external transaction.