Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · War Astrology: Yogas, Nakshatras
युद्धजयार्णवः (योगाः नक्षत्राणि)
रत्ननाडीत्रयं चैव स्थूलः सूक्ष्मः परोऽपरः ।चिन्तयेच्छ्वेतवर्णं तं मुञ्चमानं परामृतम् ॥ १७ ॥
In the full Agni Purana this is chapter 124, verse 17.
There are three jewel paths: gross, subtle, beyond and not beyond. One should think of that white one, releasing the highest nectar.
Simple meaning: Think of the white one releasing the highest nectar through the three jewel paths.
प्लाव्यमानं यथाऽऽत्मानं चिन्तयेत्तं दिवानिशम् ।
Thinking of oneself as flooded by it, one becomes ageless and reaches Shiva-hood.
अङ्गुष्ठादौ न्यसेदङ्गान्नेत्रमध्येऽथ देहके ।
After placing the mantra limbs on the body and worshipping Mrityunjaya, one wins at the start of a battle.
शून्यो निरालयः शब्दः स्पर्शस्तिर्यङ्नतं स्पृशेत् ।
Sound, touch, form and water are each given a direction of movement.