April 12

…as He hath said: “Man is My mystery, and I am his mystery.” Manifold are the verses that have been repeatedly revealed in all the heavenly Books and the holy Scriptures, expressive of this most subtle and lofty theme. Even as He hath revealed: “We will surely show them Our signs in the world and within themselves.” [Qur’án 41:53] Again He saith: “And also in your own selves: will ye not then behold the signs of God?” [Qur’án 51:21] And yet again He revealeth: “And be ye not like those who forget God, and whom He hath therefore caused to forget their own selves.” [Qur’án 59:19] In this connection, He Who is the eternal King—may the souls of all that dwell within the mystic Tabernacle be a sacrifice unto Him—hath spoken: “He hath known God who hath known himself.” 
(Baha’u’llah, ‘The Kitab-i-Iqan’)