The Lord said:
1. Then Ishall describe the mode of consecrating the doors (of a temple). After having washed the door frames with decoctions of herbs, theyshould be laid on the bed.
2-3. The three fundamental principles—the soul etc. together with their lordsshould be located in the lower, middle and upper parts. After having offered oblations, and repeated the rūpa mantras, the vastu (the presiding spirit of the place)should be worshipped there itself with the mantra of Ananta (an important serpent chief). After having placed the five things gem etc., the rite of appeasementshould be done.
4-5. Barley, white mustard, kranta, siddhi, vruddhi, mahatila, gomrut, mustard, rajendra, mohani, lakṣmana, amruta, rochana, rug, vacha, durvå and patalishould be placed on the threshold under the temple in their natural form for the sake of protection after the recitation of (the syllable) om.
6. The northern doorshould be consecrated after sprinkling water. The fundamental principle of the soulshould be located under that and the principle of knowledge on the sides.
7. The principle of bliss (should be located) in the region of the sky as permeating the entire region. Then (lord) Maheśhanatha (Shivá)should be installed with the recitation of) the principal mantra.
8. The turrets etc. resting on the door (should be located) with their respective names appended. Oblation to fireshould be made hundred times or half the number of times or twice that or according to one's ability.
9. One hundred oblationsshould be made with the mantra of the weapons to ward off defects of omission etc. After having offered oblations for the quarters, the fees etc.should be paid.
Summary of chapter 100 of the Agni Purāṇa is as follows:
The hundredth and concluding chapter of Part 1 describes the installation procedure for the temple doorway — the sacred threshold through which all devotees must pass to enter Bhagavān's presence. The door frame (dvāra-aṅga) is first purified with astringent waters (kṣāya), then placed on the adhivāsana bed. The three-tattva nyāsa (ātma-tattva at the base, vidyā-tattva in the doorposts, and śiva-tattva pervading the entire doorway space) is performed. A collection of auspicious herbs and substances — barley, white mustard, akrāntā, ṛddhi, vṛddhi, the ten great sesame varieties, gopīcandana, nāgakeśara, mohinī, lakṣmaṇā, amṛtā, gorocanā, āragvadha, and dūrvā grass — is bound into the udumbara (threshold wood) for the protection of all who enter. The three-tattva nyāsa is re-established in the installed doorway, and homa offerings of fifty, a hundred, or double the standard number are made for the doorway deities. The chapter concludes with the directional bali-s and the distribution of dakṣiṇā, completing the first major section of the Agni Purāṇa's Āgamic teaching. *All chapters sourced from: Agni Purana - 1 PRINT.md*