Lyric discussion by bugmenot 

Cover art for The Blood Is Love lyrics by Queens of the Stone Age

In three words: love and mortality. This song is basically about the carnal nature of love, romantic and sexual.
"these lines of life have been drawn" "the seed waits for the reaper to sough" (NOT sew, by the way) This is about impending death, not necessarily recent death or death coming soon, but lingering somewhere in the future. Blood characterizes the carnal facet of being human, so love is the carnal answer to death, lending a dark edge to the subject. by the way, IT ROCKS

@bugmenot Sow.