(Qaba Qawsayn). This term is also called 'Union of Union', or 'The Gathering of the Gathering'. It signifies one of the highest spiritual stations of Perfection which is attained by the greatest Perfect Men, that is, many of the Prophets of Allah and some of the great saints. This is the stage which immediately precedes absorption in the Source, Allah. It is the closest point that the slave can reach while still remaining the slave. It is that fine and inexpressible dividing line which separates Oneness from multiplicity, the Unseen from the visible, Allah from His slave.