By the Sea
Mermaids in basement
Dickinson's house metaphor: the ocean floor is the basement, the surface is the upper floor. She's turning the sea into domestic architecture.
Hempen hands
Hemp = rope. The ships' rigging extends toward her like hands reaching to rescue a drowning mouse. She's imagining how she looks from their perspective.
No man moved me
First use of masculine pronouns for the sea. Watch how the tide shifts from 'it' to 'he' as it becomes threatening—personification with a sexual edge.
Eat me up / as dew
Reversal: dew doesn't eat dandelions, it evaporates off them. The sea would consume her as completely as morning sun consumes dew—total erasure.
Silver heel
The water is at her ankles, filling her shoes. 'Heel' suggests the sea is a pursuer stepping on her heels, chasing her up the beach.
The sea withdrew
He bows and retreats at the town's edge—civilization is the boundary where the sea's power ends. The gentleman-predator knows his limits.