It's not a there cat, or a why bear, it's a...

It ain't easy being the first five It's a place where plants thrive Clear walls, yet full of color Keeps out winter, when days are duller

You can make as many of me in winter, But need only three of me to make a person, And only one of me to start a fight.

I hold a thousand stories yet tell none of my own. I am crossed by those who fear me, Followed by those who trust me, And forgotten by those who know me best. What am I?

I'm what you hear when you don't hear the words I'm an indistinguishable sounds of a crowd Or an unusual beat in your heart