Is it a Simile?

IS IT SIMILE?

A caravan,
ants heavy with crumbs,
descends a leg
of the picnic table
as I tear
another piece of baguette
chew a tiny bit
to tiny bits
breaking polysaccharides
to simpler fragments
stirring taste buds
hint of sweetness

like I imagine
a student enters a forest
of mathematical matrices
meanders around numbers,
symbols and finds
gate of understanding,
the palace of Heisenberg’s
uncertainty principle,
opens.

A cow is a river.
You can not cross it twice
wrote Heraclitus.
A mother and child,
dispossessed or with provisions,
should not be afraid.
Come, cup your hands
have a drink
it may make all the difference.