阿

(sa) a or (sa) ā, अ, आ. It is the first letter of the Sanskrit Siddham alphabet, and is also translit. by [lang id =1028]曷, [lang id =1028]遏, [lang id =1028]安, [lang id =1028]頞, [lang id =1028]韻, [lang id =1028]噁, etc. From it are supposed to be born all the other letters, and it is the first sound uttered by the human mouth. It has therefore numerous mystical indications. Being also a negation it symbolizes the unproduced, the impermanent, the immaterial; but it is employed in many ways indicative of the positive. Amongst other uses it indicates Amitābha, from the first syllable in that name. It is much in use for esoteric purposes.

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華譯為無， 又云真空， 為眾音之母， 一切字的種子。