also Rephael, Refael, Refa'el (Hebrew רְפָאֵל) from the root רפא, which means "heal", "cure". The second part is אֵל (el, "God"). An important angel in Judaism, Christianity, and Islam. Read the apocryphal book Tobit.
“Gnosis is lived upon facts, withers away in abstractions, and is difficult to find even in the noblest of thoughts.”