顯密圓通成佛心要集 1.15

1.15

此淨法界㘕字，若想若誦，能令三業悉皆清淨，一切罪障盡得消除。又能成辦一切勝事，隨所住處悉得清淨，衣服不淨便成淨衣，身不澡浴便當澡浴，若用水作淨不名真淨，若用此法界心㘕字淨之，即名畢竟清淨瓶，如靈丹一粒點鐵成金，真言一字變染令淨。偈云：「囉字色鮮白，空點以嚴之，（梵書囉字上安空點，即成㘕字也。）如彼髻明珠，置之於頂上，真言同法界，無量眾罪除，一切觸穢處，當加此字門。」（若實外緣不具，無水洗浴闕新淨衣，但用此㘕字淨之，若外緣具者，先用水了著新淨衣，更用此㘕字淨之，即內外具清淨也，廣如諸真言儀軌經說。）

As for this syllable raṃ of the pure dharmadhātu, whether visualized or recited, it can cause the three karmas to become entirely pure, and all transgressive hindrances will be completely eradicated. It can also bring to accomplishment all supreme endeavors. Wherever one abides will become entirely pure; defiled clothing immediately becomes pure clothing; an unbathed body is equivalent to having bathed. If one uses water for purification, it is not called true purification; if one purifies with this syllable raṃ of the dharmadhātu mind, it is called the vase of ultimate purity. Just as a single grain of the elixir of immortality transmutes iron into gold, so a single syllable of the mantra transforms defilement into purity. A verse says: / 'The syllable ra is pure white in colour, / Adorned with the void dot (anusvāra)— / (When the void dot is placed above the Sanskrit syllable ra, it forms the syllable raṃ.) / Like the bright pearl in the topknot, / Placed upon the crown of the head. / The mantra is identical to the dharmadhātu; / Countless transgressions are removed. / Wherever there is contact with defilement, / One should apply this syllable-gate.' / (If external conditions are truly lacking, such that there is no water for bathing and one lacks new clean robes, one merely uses this syllable raṃ to purify. If external conditions are present, one first uses water and puts on new clean robes, and further uses this syllable raṃ to purify, so that inner and outer are both fully purified, as explained extensively in the various mantra ritual sūtras.)