Think yourselves as Lord Shiva in the form of Sri Rudra.
The Brahmin should initiate the pooja after meditating on Lord Rudra
Who is of pure crystal white colour, who has three eyes, who has five faces, who carries Ganga on his head, who has ten hands, who is decked with all possible ornaments,
Who has blue-black neck, who wears the moon in his head, who wears the snake as sacred thread, who covers himself with skin of tiger, who is great, who gives solace,
Who has with him the pitcher, garland made of beads, who has a trident, who has dark black matted hair, who shines, who wears water on his matted hair,
Who sits on a bull, who has Goddess Uma in half part of his body, who is given bath by nectar, who is peaceful, who has godly pleasures,
Who is surrounded by gods of different directions, who is worshipped both by devas and asuras, who is perennial, who is clean, who does not have death, who does not decay, who does not change,
Who is everywhere, who is the God, and who takes different forms.
The Brahmin should observe celibacy during that time, he should take bath in clean water, should wear white cloths, and pray the God by bringing in to him all Gods thus:_
Let Brahma be in parts of creation, Let Vishnu be in my feet, Let Hara be in m hands, Let Indra be in my shoulders, Let Fire god be in stomach, Let Lord Shiva be in my heart, Let Vasus be in my neck, Let Goddess Sarawathi be in my mouth, Let wind god be in my nose, Let Sun and Moon be in my eyes, Let Aswini devas be in my ears, Let Rudras be in my forehead, Let Adhityas be in front portion of my head, Let Mahadeva be in the center of my head, Let Vamadeva be in my tuft, Let Pinaki be at the back of my head, Let Sooli be in the front of my head, Let Paravathi and Parameshwara be in my left and right, and let me be surrounded by air on all sides. after the air let me be surrounded by flames, and let all these Gods be in respective organs and protect me.
Fire is in my words words in the heart and heart in my soul. I am within the deathless form of Pramathma, and the Paramathma is within the Parabrahma.-I meditate on these.
Wind God is in my soul, soul is in my heart, the heart is within me and I a part of paramathma which is a part of parabrahma.-I meditate on these
Similarly Sun is in the eyes, moon is in the mind, directions are in my ears, water in my bodily juices, earth with in my body, the plants within my hairs, Indra in my strength, rain in my head, Isana in my anger, life within Athma, Athma within heart, heart is within me, I am a part of Paramathma which is a part of Para Brahma.-I meditate on these
Let my self be active in my soul, let my soul be active in my sensory organs, and Let Fire God protect me by his flames, and let the Gods which protect deathless life be inside me and shower their grace on me.