The procedure of repeating the mantras

प्रभूतं विमलं शारं समाराध्यमनन्तरम। परमादिमुखं मध्ये खबिंबान्तं प्रपूजयेत।।

prabhūtaṃ vimalaṃ śāraṃ samārādhyamanantaram| paramādimukhaṃ madhye khabiṃbāntaṃ prapūjayet||