Source : Webster's Revised Unabridged Dictionary (1913)

Afflatus \Af*fla"tus\, n. [L., fr. afflare. See {Afflation}.]
   1. A breath or blast of wind.

   2. A divine impartation of knowledge; supernatural impulse;
      inspiration.

            A poet writing against his genius will be like a
            prophet without his afflatus.         --Spence.

Source : WordNet®

afflatus
     n : a strong creative impulse; divine inspiration; "divine
         afflatus"