Lonely as a sparrow in the rain

I'm tired, boss. Tired of bein' on the road, lonely as a sparrow in the rain. Tired of not ever having me a buddy to be with, or tell me where we's coming from or going to, or why. Mostly I'm tired of people being ugly to each other. I'm tired of all the pain I feel and hear in the world everyday. There's too much of it. It's like pieces of glass in my head all the time. Can you understand? - from The Green Mile