仁王護國般若波羅蜜多經疏 1.152

1.152

問：佛無散心，無不皆定。何故此中而復言入？答：佛無散心，為師範故；顯慧依定，示先入故；定慧雙修，不傾動故。入定放光及以說法，三業示導，即三密故。如來常法尊敬般若，將欲演說，示敬儀故。妙三摩地者，唯佛獨得，故稱為妙。三摩地者，此云等持。體離沈掉故名為等，專注一境即名為持，等即持故，亦名三摩提，義同地也。因位等持通定散地，果位唯定唯是有心亦唯無漏。若云等至，通有無心。若言等引，即唯是有。二皆唯定，漏等皆通。三摩地言，簡彼後二，彰欲說經暢乎淨慧，慧依定發，故先入矣。從此第二光照十方。其義者何？

Question: The Buddha has no distracted mind, and there is nothing that is not meditative absorption. Why then does it state here again that he "entered"? Answer: Although the Buddha has no distracted mind, he does so to serve as an exemplar; to show that wisdom relies on absorption, he demonstrates entering it first; and cultivating both absorption and wisdom together, he is unshakable. Entering absorption, emitting light, and preaching the Dharma are the demonstrations of the three karmas, which are the three mysteries. It is the constant rule of the Tathāgatas to venerate prajñā; when about to proclaim it, he demonstrates the deportment of respect. As for "wondrous samādhi", only the Buddha alone attains it, hence it is called "wondrous". As for "samādhi", this translates as "equipoise" (*samāhita* / *samādhi*). Its essence is free from sinking and agitation, hence it is called "equipoise"; focusing single-mindedly on an object is called "holding"; because being balanced is holding, it is also called *sanmati*, its meaning being identical to *samādhi*. In the causal stage, samādhi pertains to both concentrated and distracted levels; in the fruitional stage, it is solely concentration, solely with mental activity, and solely undefiled. If one speaks of meditative attainment (*samāpatti*), it extends to both states with and without mind. If one speaks of meditative poise (*samāhita*), it is solely with mind. Both are strictly concentration, and both defiled and undefiled pertain to them. The word *samādhi* excludes those latter two, making clear that in desiring to preach the sūtra he expresses pure wisdom; because wisdom arises relying on concentration, he enters it first. From here, the second part is his radiance illuminating the ten directions. What is its meaning?