"In tumult" [boomerang]

The days when I may wander in the evening are returning
I have perhaps some while yet to tarry on the earth
they say there's wondrous order in the play of death & birth
some claim the world is fashioned as a school for lovely learning
but reason's insufficient to produce the rhyme of mirth
for reasons under reasons hide   like waves whose restive churning
describes a heart in tumult   such a heart dwells in my girth
the days when I may wander in the evening are returning