請觀音經疏闡義鈔 3.63

3.63

經云「不飲酒」者，如《五分律》云「跋陀越邑有毒龍，雨雹損苗。居士請婆陀竭陀降之，遂以酒飲，吐臥在道。佛言：『昔伏毒龍、今不能降蝦蟇。』因說漸斷酒戒。」以酒令人昏亂，故今持呪者不得飲。約理，則酒是無明也。《涅槃》云「譬如醉人，見日月轉。」「不噉肉」者，若約事釋，如《楞伽》云「有無量因緣不應食肉。」乃至云「令修行者慈心不生，及令呪術不成就等。」「是無緣大慈也」者，此約理釋也。

The sūtra says 'do not drink alcohol': as the *Mahīśāsaka-vinaya* states, 'In the town of Bhadravatī there was a poisonous dragon, which rained hailstones and damaged the crops. A householder invited Svāgata to subdue it. Subsequently [the people] gave him wine to drink, and he vomited and lay by the roadside. The Buddha said: "Formerly he subdued a poisonous dragon; now he cannot even subdue a toad." Because of this, he taught the gradual precept of abstaining from alcohol.' Because alcohol makes people confused and disorderly, those who uphold the dhāraṇī now must not drink it. In terms of principle, alcohol is ignorance. The *Nirvāṇa [Sūtra]* says: 'It is like a drunken person seeing the sun and moon spinning.' Regarding 'do not consume meat': if explained in terms of phenomena, as the *Laṅkāvatāra* says, 'There are limitless causes and conditions why one should not eat meat,' and further says, 'It causes the practitioner not to give rise to a mind of compassion, and causes mantras not to be accomplished, and so forth.' Regarding 'It is great compassion without conditions': this is explained in terms of principle.