Awake when diablos soar eastward! Into fires! How you neglect prophesying runes yesterday?
Divide the sentence into pair of two words starting from the first, disregarding any punctuation as follows:
(awake, when), (diablo, soar), (eastward, into), .........., (prophesizing, runes), (yesterday).
Take the first letter of first word and last letter of the second word of each pair, to obtain:
(a,n), (d,r),(e,i), (s,h), (u,n),(g,r),(y,)
Then reading left to right we have the deciphered text as:
"Andre is hungry."