Am I?

I am yesterday's dust in the window
that tonight's rain washed away.

I am the gecko in the street lamp
chanting and hoping to cling on one's arm.

I am the tasteless bubble gum in your shoe
that went with you through the rough roads.

I am the deformed coin you dropped
in the wishing well while uttering your desire.

I am the last line of the song you heard
when you went out of the taxi.

I was the one who bruised
your chest but had the scar.