Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 3 · Name Letters and Chakras
युद्धजयार्णवः (चक्राणि)
बीजसंपुटितं नाम कर्णिकायां दलेषु च ।पूजाक्रमेण चाङ्गानि रक्षायन्त्रं स्मृतं शुभे ॥ ३७ ॥
In the full Agni Purana this is chapter 133, verse 37.
Write the name enclosed by bija (seed syllables), in the centre and on the petals. Place the limbs in the order of worship. This is called the protection yantra (drawn figure), O fair one.
Simple meaning: Put the name in the centre and on the petals, with seed syllables around it. This is the protection figure.
मृत्युंजयं प्रवक्ष्यामि नामसंस्कारमध्यगम् ।
Next comes the Mrityunjaya figure, with the name in the middle, awakened by the letter sa.
जकारं विन्दुसंयुक्तमोंकारेण समन्वितम् ।
Write ja with a dot and Om inside the letter dha, and awaken it with va.
चन्द्रसंपुटमध्यस्थं सर्वदुष्टविमर्दकम् ।
This figure inside a moon-shaped ring crushes evil. Or write the name and the purpose in the centre.