And right there, She is seated, as an inundation of Bliss that is of pure Cit, Knowledge. This is what one has to visualize in one’s meditation.
After this shloka come two shlokas, #s. 9 and 10, wherein we are told how to propitiate ambaal through the KunDalini Yoga and mantra yoga. Sloka #9 describes how one achieves the bliss of advaita by moving the KunDalini Shakti through the six chakras (also called lotuses). From bottom up, in these chakras, the KunDalini Shakti is in the form of the five elemental principles - earth, water, fire, air, and space and then in the sixth, as the mind principle. The nADI (nerve, approximately) which has all these chakras is called the sushhumnA nADI.