20 different tribal tattoo-style flourishes. These were used in an actual tattoo, you can see it here:
http://mairin.wordpress.com/2009/09/03/dedication/
Egyptian symbol of the endless cycle of emanation and reabsorption. More info: http://www.philaletheians.co.uk/Study%20notes/Theosophy%20and%20Theosophists/Keys%20to%20the%20Mystery%20Language.pdf