Tantric Form of Goddess Worship, 11th book of the Devi Bhagvata.

The Kundalini resides on the ruddy lotus (the mooladhara).
She is blood red in color and has Hrim for her symbol.
She is like a lotus filament.
Her face is the sun, her breasts the moon.
If she dwells just once in one’s heart, one is liberated.
She is (all acts): sitting, coming, going, understanding, reflecting, lauding, singing. I am universal and divine; all (my acts and) praise are worship for you (the Devi).
I am the Goddess; you are not other (than I). I am Brahman, free of sorrow.
I am infinite being, consciousness and bliss. Thus, should one reflect on one’s Self.
She shines brilliantly in her ascent; she appears like nectar in her descent;
I take refuge in that woman who wanders along the middle channel in the form of bliss.

This verse refers to the ascent of the Goddess in her form as the Kundalini from the Mooladhara Chakra at the base of the spine through the central channel of the Sushumna to the Lotus of thousand petals at the top of the head. There she unites with Siva, producing the ambrosial nectar, with which she then descends back to the Mooladhara Chakra.

The Tantric worshipper identifies her/him/self with the deity worshipped.

Hrim is the Hrllekha Mantra is fixed in the Mooladhara Chakra, R is fixed in the Anahata Chakra. I am between the brows and Hrim is on top of the head. Hrim Is considered to be the most powerful mantra for illuminating higher wisdom. It enables to open the mind to higher states of consciousness.

Aim Hrim Klim