Vocab Words! :D

Dancing softly in the sky,
nebulous and floating high,
singing words
and paean hymns
for the someone by the Grim,
where the old ones come to float
watching martial mavericks boast
of a something flying high,
fulminating from the sky,
imprecating me to fear
of these sordid words I hear,
for the test will come one day
where I'll know them,
or not,
some say.