15: Maya or Illusion.  The word Maya is one which has to be properly understood by you in order that you may catch the spirit of the ancient philosophy.  The derivation that is given for the word is Ma + Ya or not that.  Maya is therefore a power that makes a thing appear as what it is not, or a power of illusion that arises out of limitation in the ancient concept of a true unity periodically appearing as multiplicity by the power of Maya that coexists with that unity.