Dreams are Weird

[There is a Part 1 that is intentionally omitted from this post.]
So, in Part 2 of my dream I was cutting off a chunk of a dead tree that was in someone’s backyard. Dry and brittle, a fragment the size of my arm comes loose and splits on the ground.
I see around 5 round and hearty looking ants come out of it and scurry about. Half of them seem to wander around aimlessly and the other half run into the shelter of 2 separate holes in the ground.
From these holes emerge (what appeared at the time to be) two svelte spiders that have their hairs slicked back with dew and mud, and now covered by tiny invaders.
I look closely and what I thought were ants were actually spiders, and what I thought were 2 spiders were actually 2 crabs.
I see the two crabs taking their time, individually eating each spider as they lazily walk along the ground.
I think to myself, “How did these crabs get here?”
I rationalize a response in my head.
Then I wake up.