Some of us are still discussing and getting a grasp on the present Amaranth. While this thread contains spoilers, I'm sure everybody and their guar knows by now.
A summation of the amaranth is given in the OP of the following thread. The amaranth is revealed about mid-way through the thread:
http://www.gamesas.com/topic/1451586-summing-up-the-amaranth/
- To skip to the answer, Toesock was so gracious as to give us MK's explanation on page 4:
http://www.gamesas.com/topic/1451586-summing-up-the-amaranth/page-4
The hunt has been long and strenuous for many of us but well rewarded. "Amaranth" is a complex concept, so perhaps we can continue to reflect for a bit longer.