Although this is known as Elijah the Prophet Water, it has little to do with the biblical prophet.
In Russian tradition, Elijah is syncretized to the thunder spirit, Perun. His feast days are July 20th and July 30th, known as “thunder days.” Rain falling on these days is believed to have tremendous therapeutic and magickal value. Bottle it, refrigerate it and reserve for magickal emergency. Elijah the Prophet Water protects against the Evil Eye, general serious illness, and malevolent magick.