大日經持誦次第儀軌 1.38

1.38

誦此真言已，當住於等引，
諦觀我此身，即是執金剛。
甲冑金剛契，先作三補吒，
止觀二風輪，糺持火輪上。
附中指上節，二空自相並，
而在於掌中，火輪想囕字。
囕字如明珠，置之於頂上。

Having recited this mantra, / One should abide in samāhita / And attentively contemplate this body of mine / As being none other than Vajradhara. / For the Vajra Armor mudrā: first make the sampuṭa; / Interlace the two wind-wheels of śamatha and vipaśyanā over the fire-wheels, / Attached to the upper joint of the middle fingers. / The two space-[wheels] are placed side by side, / Standing within the palms. / On the fire-wheels visualize the syllable RAṂ; / The syllable RAṂ is like a bright jewel: / Place it upon the crown of the head.