顯密圓通成佛心要集 1.13

1.13

且初持誦儀軌者，謂真言行者，每日欲依法持誦時，先須金剛正坐，（以右脚壓左脚脾上，或隨意坐亦得。）手結大三昧印，（二手仰掌展舒，以右手在左手上，二大拇指甲相著，安臍輪下，此印能滅一切狂亂妄念雜染思惟。）澄定身心，方入淨法界三昧。謂想自身頂上有一梵書㘕字，此字遍有光明，猶如明珠或如滿月。想此字已，復以左手結金剛拳印，（以大拇指捻無名指根第一節，餘四指握大拇指作拳，此印能除內外障染，成就一切功德。）右手持數珠，口誦淨法界真言二十一遍，真言曰：

First, regarding the ritual procedures for recitation: when a mantra practitioner wishes to recite according to the dharma each day, he must first sit properly in the vajra posture (placing the right foot upon the left thigh, or sitting as one pleases is also permissible). With his hands he forms the Great Samādhi Mudrā (both hands open palms upward, the right hand placed on the left hand, the tips of the two thumbs touching each other, placed below the navel wheel; this mudrā can extinguish all wild, disordered, deluded thoughts and defiled thinking). Having calmed and stabilized body and mind, he then enters the samādhi of the pure dharmadhātu. That is, he visualizes above the crown of his own head a Sanskrit letter raṃ. This letter radiates light everywhere, like a bright pearl or a full moon. Having visualized this letter, he then forms the Vajra Fist Mudrā with his left hand (pressing the thumb against the base of the first joint of the ring finger, and holding the thumb in a fist with the remaining four fingers; this mudrā can eliminate internal and external defiling hindrances and accomplish all merits). With his right hand he holds the counting beads, and with his mouth recites the Pure Dharmadhātu Mantra twenty-one times. The mantra is: