Lyric discussion by tinytownn 

To me this seems to be about conception and pregnancy? "lay your eggs where it's warm"- the warmth and comfort the ovaries provide to eggs, or the soft and warm uterus where the zygote will form.

"we come here to swarm come by sea swarm like smoke in the dawn"- possibly sperm. they come in swarms, in fluid like a wave? And expand in the space they are given (disperse in the vagina like smoke in the air)

"flailing fetal fleas feeding from the arms of the master burrow into me and this is sure to misspell disaster Oh and the young in the larval stage orchestrating plays in vestments of translucent alabaster"- Burrowing into the uterine lining, being nervous about the 'disaster' that could come of this, and fetuses of course leech and feed off of their master

"so they took me to the hospital they put my body through a scan what they saw there would impress them all for inside me grows a man who speaks with perfect diction as he orders my eviction"- a sonogram possibly, finding a 'man' growing inside the womb and he is almost developed enough to fend for himself without the comfort of the womb

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