The Letters of Hermes and Isis

“Great is the Lady Isis!” Copy of a Holy Book found in the Archives of Hermes: The Method is that concerning The 29 Letters [of the Coptic alphabet], through which Letters Hermes and Isis, who was seeking Osiris, Her Brother and Husband, found Him. Call upon Helios and all the Gods in the Deep concerning Those Things for which you want to receive an Omen. Take 29 Leaves of a Male Date Palm and write on each of the Leaves the Names of the Gods. Pray and then pick them up Two By Two. Read the Last Remaining Leaf and you will find your Omen, how things are, and you will be answered clearly. – PGM XXIVa.1-25