摩訶止觀 4.92

4.92

三衣者，即三觀也。蔽三諦上醜；遮三諦上見愛寒熱；却三覺蚊虻，莊嚴三身。故以三觀為衣，即是伏忍、柔順忍、無生寂滅忍也。又起見名「寒」，起愛名「熱」。修止觀得見諦解如煖，見則不生；得思惟解如涼，愛則不生。五根無惡，即福德莊嚴；意地無惡，即智慧莊嚴。餘二觀上衣，例可解。

The three robes are the three contemplations. They conceal the ugliness upon the three truths; they fend off the cold and heat of views and cravings upon the three truths; they repel the mosquitoes and flies of the three thoughts and adorn the three bodies. Therefore, taking the three contemplations as clothing is just the patience of suppression, the patience of compliance, and the patience of the quiescent extinction of non-arising. Furthermore, giving rise to views is called 'cold,' and giving rise to craving is called 'heat.' Practicing calming and contemplation to attain the understanding of seeing the truths is like warmth, so views do not arise; attaining the understanding of reflection is like coolness, so craving does not arise. When the five sense faculties are free from evil, that is the adornment of merit; when the mental ground is free from evil, that is the adornment of wisdom. The robes upon the remaining two contemplations can be understood by analogy.