Annotation: Hippocrene, Keats' Ode to a Nightingale

The Waterfall, by Daniel Maclise

Full of the true, the blushful Hippocrene

The hippocrene is a mythical fountain on Mount Helicon created when Pegasus struck the ground with a hoof, the force was so strong water cascaded forth. Anyone who drinks it is filled with poetic inspiration.
 
Source

"Hippocrene." Wikipedia, the free encyclopedia. N.p., n.d. Web. 28 May 2012. <http://en.wikipedia.org/wiki/Hippocrene>.