The great medieval rabbinical authority Bahya ben Asher claimed that he was familiar with drugs which gave one access to higher knowledge, as manna had done in the wilderness. But what is this manna, the appearance and preparation of which is described in detail in the Bible, and which causes the Israelites to see sounds?
Could it be ergot?
The incense of the ancient Israelite priests contains 16 ingredients, most of which are psychoactive.
It was burned by the handful in a small, tightly sealed chamber containing nothing but a censor and a magic box from which emerged the revelation of the divine.
Some of the most exalted plants in the Bible contain strong but non-toxic psychoactive compounds.
A recipe guarded by the Israelite priests employs a complex synergy working through inhibition of the body's enzymes, and it was also known to Pharaoh's apothecaries in Egypt, who made it into a massage oil. But the Israelite version, which was used to introduce the anointed person to Yahweh, also contained kaneh bosem which may be cannabis.