bane of shadow and no heavier than air, it can blind with only the slightest glare

I work at gyms and seaside too, I mop up messes made by you. Though I get soaked, I never complain, what am I used after bath or rain?

I stand where boundaries rise and fall, I keep things in and out for all, I’m silent, still, yet strong and tall.

A journey with no map, a dance without rhythm, unseen but felt, the script of every creature's stage play.

I aspire to gain knowledge. In the hope for updates, I am at the beginning of many conversations.