O SON OF MAN!
Write all that We have revealed unto thee with the ink of light upon the tablet of thy spirit. Should this not be in thy power, then make thine ink of the essence of thy heart. If this thou canst not do, then write with that crimson ink that hath been shed in My path. Sweeter indeed is this to Me than all else, that its light may endure for ever.
From the Arabic Hidden Words, No. 71