I’m the edge of the sky you’ll never reach, I move when you move, yet stay out of reach. Sailors chase me, poets adore me, Step closer and I flee before thee. What am I?

I’m the edge of the street where your journey might pause, A place to look both ways, find adventure's cause.

Tonight I stay, tomorrow I laugh elsewhere. Once I swear I’ll leave, I never do. When the crowds thin, I perform anyway. Names change, streets don’t follow. Tell me, what keeps me talking?

Guardians of vessels, their mighty shield, Where waves crash and secrets are sealed. My first part a place where ships find berth, My second a divider, made of stone, brick, wood or earth.

I have a mouth but I don't eat. I have a bed but I don't sleep