Place śrī bīja, then put māyā bīja, then kāma bīja, then vāgbhava bīja And at last parā bīja. Therefore the first line of the mantra is formed. Hrīṁ ह्रीं is generally known as Bhuvaneśvarī bīja. Bhuvana means the earth and Īśvarī indicates the ruler. She is called Bhuvaneśvarī since, https://arthurxgnuz.blogocial.com/not-known-facts-about-shodashi-66869555