Marrow

For when a sincere lover and agreeable friend attains to the meeting of the beloved and desired one, a fire is enkindled from the radiance of the beauty of the beloved and the heat of the heart of the lover, which consumes all coverings and veils: nay, whatever is with him, even marrow and skin, will thereby be burnt, and naught remain except the Friend.

Bahá’í Scriptures, p. 169