大毘盧遮那經供養次第法疏 2.13

2.13

三、成畫大日門。次當轉阿字者，次者本不生法，絕言相寂心行亦滅，假言強噵，大悲之法應機顯現，謂即能現阿字也。次應兩足眾生，為兩足故，即轉阿字成兩足尊，故言次當轉阿字成大日牟尼也。圓光者，大日圓光猶如明鏡，於明鏡中皆現萬物，何況塵垢本不生如來圓光。千界者，三千大千世界也。增數者，大千為一數，乃至不可說不可說。光焰，謂所致法也。流出者，大日所放也。輪者，具德義，謂降伏煩惱，能生善牙，故名輪也。光明者，身業也。令開悟者，口業故言，身語遍一切也。閻浮金色者，從閻浮池出金，此池近在閻浮樹側，由此得名，於金中最勝也。跏趺坐者，凡坐法，聖善之寺三藏和上邊面受，左足先著右髀上，右足次著左髀上，名為蓮華坐。單足著左髀上，名為吉祥坐也。別此坐者，非聖坐也。若欲求菩提，學佛坐為得。正受者，入定相也。諸毒者，三毒相也。綃縠衣者，金羅文也。自然髮髻冠者，非從人作。

3. Section on Visualising and Drawing Vairocana. Regarding "next one should transform the letter A": "next" means the dharma of ādy-anutpāda, wherein words and marks are extinguished and mental activity also ceases; conventional speech is forced to describe it, and the dharma of great compassion is made manifest in response to capacities, which means it can manifest the letter A. Next, in response to two-footed sentient beings, for the sake of the two-footed, it transforms the letter A to become the two-footed honoured one; hence it says "next one should transform the letter A to become the great Sun Muni (Mahāvairocanamuni)". Regarding "circular radiance": the circular radiance of the Great Sun is like a bright mirror; within a bright mirror all the ten thousand things appear, how much more so within the circular radiance of the Tathāgata whose dust and defilement are originally unarisen. "A thousand worlds" means the three-thousand-great-thousandfold worlds. "Increased number" means taking a great-thousand[fold world] as one unit, up to ineffable upon ineffable. "Flames of light" means the dharmas that are brought forth. "Flowing forth" means emitted by the Great Sun. "Wheel" carries the meaning of possessing virtues: meaning it subdues defilements and can give birth to the sprouts of goodness; hence it is called a wheel. "Bright light" is the karma of body. "Causing enlightenment" is the karma of speech; hence it says body and speech pervade everything. Regarding "Jambū gold color": gold comes forth from Lake Jambū; this lake is located right beside the Jambū tree, and takes its name from this; it is the most supreme among gold. Regarding "full-lotus posture": as for the general rule of sitting, received in person beside the Tripiṭaka Upādhyāya of Shengshansi: first place the left foot on the right thigh, then place the right foot on the left thigh; this is called the lotus posture. Placing a single foot on the left thigh is called the auspicious posture. Any sitting other than these is not a noble posture. If one wishes to seek bodhi, learning the Buddha's sitting posture is proper. "Correct absorption" is the characteristic of entering samādhi. "All poisons" means the characteristics of the three poisons. "Garment of gossamer gauze" means patterns of gold netting. "Naturally formed topknot crown" means not made by human hands.