首楞嚴義疏注經 2.430

2.430

陀羅尼，此云總持，然有一字、多字、無字之異。若指下文神呪，即多字也。若顯實相妙理，即無字也。今此所明真覺妙心，是諸三昧妙修行門之基址，故若不通達而修行者，皆為邪僻，故指此法為通衢耳。

Dhāraṇī is translated here as 'all-holding' (zǒngchí); however, there are distinctions of one syllable, many syllables, and no syllables. If referring to the divine mantra below, it is of many syllables. If revealing the wondrous principle of the real mark, it is of no syllables. What is clarified here, the wondrous mind of true awakening, is the foundation of the wondrous practice gate of all samādhis. Thus, if one practices without thoroughly penetrating it, it is all aberrant and perverse; hence this Dharma is indicated as the thoroughfare.