This chapter advances a unified philosophy of integrative haptics, proposing that the future of haptic design lies in achieving informational coherence across sensing, inference, and application. It identifies the haptic information bottleneck—the asymmetry between biological and artificial tactile bandwidths–as the primary constraint on perceptual realism, and introduces haptic accessibility as the condition in which this gap is minimized through parity in representation and response. Extending beyond parity, haptic reciprocity emerges as the mutual adaptation of human and artificial systems within shared inferential loops, culminating in the vision of universal tactile interaction—a framework where touch functions as a common medium of cognition, coordination, and understanding.