首楞嚴義疏注經 4.425

4.425

Initial practice is called śamatha; accomplishment is called samādhi. Both the initial practice and subsequent accomplishment are called 'clarity'. The Awakening of Faith says: 'What is called śamatha means halting all marks of perceptual realms; when perceptual realms do not arise, seeing and hearing do not occur, gradually settling and subduing, so that coarse defilements are spontaneously dispelled.' The Sūtra of Perfect Enlightenment says: 'Taking the pure enlightened mind, one adopts quietude as one's practice. Due to clarifying all thoughts, one becomes aware of the turbulent agitation of consciousness; pure wisdom arises, and adventitious defilements of body and mind are forever extinguished from this, whereupon one can internally generate tranquil pliancy. Because of tranquility, the minds of all tathāgatas of the worlds of the ten directions appear within it like images in a mirror; this skillful means is called śamatha.' If at all times one can avoid giving rise to deluded thoughts, nor extinguish those deluded minds, abide in realms of false thoughts without adding cognition, and within non-cognition not discern reality—this is called according with the enlightened nature, attaining the unarising nature as the mind on the causal ground. Cultivating gradually from this, one enters realisation, reaches the utmost, and accomplishes the perfect, wondrous fruit. The sequence of cultivation is explained in detail in Tiantai's Perfect and Sudden Śamatha and Vipaśyanā.