 Another theory explains the connection between fire and water through lightning, "the flash of fire born from the rainbearing clouds".Based on the idea that this fire-from-water image was inspired by flaming seepage natural gas, attempts have been made to connect the name "Apam Napat" to the word "naphtha", which passed into Greek—and thence English—from an Iranian language.However, there is no recorded evidence of a link between sacred fires of Iranian religion and petroleum or natural gas, and the origin of "naphtha" is likely Akkadian "napṭu", "petroleum".