The glorious Vidyā of the Supreme Queen Kāmeśvarī is called Pañcadaśī as it constitutes of fifteen mystic letters.
1. The first letter of the vidyā, which the śruti refers to as kāma is stationed within the Parabindu located within the triangle present in the center of the sahasrāra padmakarṇikā (the crown). This triangle is referred to as anuttara trikoṇa and the Parabindu represents the complete sāmarasya (harmony) of śakti and śiva. Lustrous like a thousand moons, the kāmabīja derives reflects the luster of the Parabindu.
2. The second letter of Pañcadaśī śrīvidyā, referred to as yoni or viśvayoni (from which arises the Universe of names and forms), is present within the kulatrikoṇa (triangle) at the center of Mūlādhāra chakra (the root center). This bīja, fine as the fiber of the lotus stalk, is verily of the form of Kulakuṇḍalinī.
3. The third bīja, which is the essence of the Parāparā aspect of Parāśakti, represents iccā, jnāna, and kriyā and is located within the heart lotus (Anāhata chakra). Kāmeśvara or prakāśa tattva has a predominance of icchā śakti, Kāmeśvarī or vimarśa tattva has a predominance of kriyā śakti, whereas the śāmbhava tattva or the sāmarasya of Prakāśa and Vimarśa has the predominance of jnāna śakti. Being the essence of Kāmakalā, this bīja thus represents prakāśa, vimarśa and the sāmarasya of the two, and hence also icchā, jnāna and kriyā. This bīja is visualized as having the luster of a thousand lightenings.
4. The fourth letter, referred to as the śakrabīja, resplendent like a bright lamp, is situated at the center of the forehead.
5. The fifth letter, which is also the last of the Vāgbhava kūṭa, is bright like the lightening and spreads over the region of the eyes (three including the wisdom eye) and the nose. If one were to split the components of the māyā bīja, Dīpakanātha Siddha places hakāra, rakāra, and īkāra within the three eyes and nāda and bindu within the two nostrils.
6. The sixth letter, also the first of Kāmarāja kūṭa, is called the śivabīja and pervades the three bindus (ūrdhva, adhaḥ, and madhya bindus) located above the sahasrāra, which represent the three states of void or śūnya.
7. The seventh letter, ruddy like the rising sun, is placed at the center of the face (mukha-madhya).
8. The eighth bīja, called the kāma or mādana, is of the color of saffron and situated at the navel area.
9. The ninth letter, which presents the vāyu named prāṇa, extends up to twelve aṅgulas beyond the physical body (generally measured from the tip of the nose). The bīja is white in color like a swan.
10. The tenth bīja, referred to as the śakrabīja, is placed at the center of the candramaṇḍala within the sahasrāra.
11. The māyā bīja, which is the last bīja of the Kāmarāja kūṭa, is brighter than a thousand suns and is placed at the center of the heart.
12. The first bīja of the śakti kūṭa is situated within the triangle at the center of the nābhi chakra (Maṇipūraka) and is ruddy like the dāḍimī flower.
13. The second bīja of śakti kūṭa is located within the Svāḍhiṣṭhāna chakra and is orange in color.
14. The śakrabīja is located within the regenerative organ.
15. The last bīja of the Mahāvidyā is present within the kulatrikoṇa of the Mūlādhāra chakra. Alternately, śiva components of the māyā bīja can be visualized as the bindu and the śakti components as trikoṇa.