二淨三業
Two Purifications, Three Karmas
經云。七日七夜。受持齋戒。食清淨食。沐浴身體。著新淨衣。晨嚼齒木(即楊枝)。澡潄清淨。應生無垢濁心。無惱害意。於一切有情。起利益安樂慈悲喜捨平等之心。鼓樂歌讚。右繞佛像。念彼如來本願功德。讀誦此經。思惟其義。法華三昧云。初入道場。當以香湯沐浴。著新潔衣。若大衣。及諸新染服。若無新者。當取己衣中勝者。以為入道場衣。於後若出道場。至不淨處。當脫淨衣。著不淨衣。所為事竟。當洗浴。著本淨衣。入道場行法。四明云。縱一日都不至穢。亦須一浴。終竟一期。專莫雜語。及一切接對問訊等。終竟一期。依經運想。不得剎那念於世務。若便利飲食。亦須秉護。勿令散失。事畢。即入道場。不得托事延緩。大要身論開遮。口論說嘿。意論止觀也。
The scripture states: For seven days and seven nights, observe fasting and precepts, eat pure food, bathe the body, and wear fresh, clean clothes. In the morning, chew a tooth-cleaning twig(i.e., willow branch), rinse and cleanse thoroughly. One should give rise to a mind free from defilement and disturbance, harboring no harmful intentions. Toward all sentient beings, cultivate a heart of benefit, peace, joy, compassion, loving-kindness, sympathetic joy, and equanimity. With music, songs, and praises, circumambulate the Buddha image to the right, recollecting the original vows and merits of that Tathagata, reciting this scripture, and contemplating its meaning.
The Lotus Samadhi states: When first entering the practice hall, one should bathe with fragrant water and wear fresh, clean garments—whether outer robes or other newly dyed clothing. If there are no new clothes, one should select the best among one's own garments to serve as practice hall attire. Afterward, when leaving the practice hall to go to an impure place, one should remove the pure clothes and put on impure garments. Once the task is completed, one should bathe again and put on the original pure clothes before entering the practice hall to engage in the practice.
The Fourth Brightness says: Even if one does not encounter any impurity for an entire day, bathing once is still necessary. Throughout the entire practice period, refrain from idle chatter and all social interactions, greetings, and inquiries. For the duration of the practice, follow the scripture in contemplation, without allowing even a moment's thought to worldly affairs. When attending to necessities like restroom visits or eating, one must maintain mindfulness and care, avoiding distraction or negligence. Once these matters are concluded, return immediately to the practice hall without delaying under any pretext.
The essential points are: regarding the body, discern what is permissible and what is not; regarding speech, discern when to speak and when to remain silent; regarding the mind, focus on stillness and insight.