If you are knowledgeable regarding Hekate, you know that she is very much a multi-faceted goddess. In addition to being depicted with three heads, she has been depicted with two heads as well as four. I have found that there are differences between these manifestations. Her three-headed aspect is her chthonic aspect, and her two-headed aspect is her Titanic aspect. Her four-headed aspect combines her Olympian, Titanic, and chthonic aspects. These four invocations will allow you to experience union with these three forms. These rites are best left to those experienced with invocation/possession.
The rites which follow were channeled and are composed largely of Latin and barbarous tongues. Some practitioners will be able to perform them quite successfully simply by reading the scripts out loud with intent, but others may need to incorporate things such as sigils, candles, incense offerings, etc. Raising a sacred space beforehand is optional, just as the potential tools I listed are.
Invocation of the Two-Headed Aspect
Io Amphiprosopos-Hecate
Odrogga Illa Inna Oz
Djieggara Illa Va Illyl
Djornar Arra Ov Ia
Galara Vor Avaea
Iennor Lyk Zee Vea
Gaza Nara Ala Vea Giedar
Invocation of the Three-Headed Aspect
O, Hekate-Trikephalos, Gloria
Vornyn Ovva Va Vea
Gordar Goss Vea Ozza
Zahzora Volla Nee Yizzel
Zakar Voll Zorn Vee’ae
Oddarrock Vorra Onna Lyn
Ave Domina Tripthoggos!
Invocation of the Four-Headed Aspect
Salve Era Tetraprosopeine
Ziennorra Lylla Iennar Ga
Vuldor Yonna Zee
Ahlar Ia Ziennor
Djiennora Lodda Zee Anar
Vossa Ill Djee Illa
Domina Hekate-Tetrakephalos, Laudamus
V.K. Jehannum 