樂邦文類 1.204

1.204

天台《止觀》云「常坐三昧，出文殊說。《文殊問經》名一行三昧。九十日為一期，結加正坐，隨一佛方面端坐正向，時刻相續。若坐疲極、或疾病所困、或睡蓋所覆，內外障侵奪，却當專稱一佛名字，慚愧懺悔，以命自歸，與十方佛名功德正等。」《輔行》釋曰「隨一佛方面等者，隨向之方必須正西。若障起念佛，所向便故。經雖不局令向西方，既令專稱一佛，諸教所讚多在彌陀，故以西方而為一準。與十方佛等者，釋疑也。恐有人疑，何故獨令稱彌陀？是故釋云功德正等也。」

Tiantai's Zhiguan states: "The constantly sitting samādhi comes from what Mañjuśrī taught; the Mañjuśrīparipṛcchā-sūtra calls it the 'single-practice samādhi'. Taking ninety days as one period, one sits cross-legged in proper posture, directly facing the direction of a single Buddha, upright and properly oriented, continuing moment by moment without interruption. If exhausted from sitting, or afflicted by illness, or overcome by the hindrance of sleepiness, so that inner and outer obstacles assail and overwhelm one, one should then single-mindedly recite the name of that single Buddha, feeling shame and repentance, taking refuge with one's whole life; its merits are exactly equal to [reciting] the names of the Buddhas of the ten directions." The Fuxing comments: "Regarding 'directly facing the direction of a single Buddha', the direction faced must be due west. This is because if obstacles arise and one undertakes buddha-mindfulness, the direction faced is convenient. Although the sūtra does not restrict one to facing the west, since it instructs one to single-mindedly recite [the name of] one Buddha, and the praises in the various teachings mostly concern Amitābha, the west is therefore taken as the single standard. Regarding 'equal to the Buddhas of the ten directions', this resolves a doubt. Lest anyone suspect, 'Why are we instructed solely to recite Amitābha?', it therefore explains that the merits are exactly equal."