Up and down, top and side. Not big but small, rolling right along

I’m the color of warning and warmth, of ripened fields and rising suns. I shine without being gold. What am I?

I speak in pairs but never make a sound, Write a lifetime without pen or ground. Four symbols bind, yet none are seen, I copy myself to stay in-routine.

A calm comes before me. Sometimes, I am evil enough to scare dogs when I approach, and yet, sometimes kind enough to bring great relaxation to you.

I come in all shapes and sizes. A gun, a sword, a spear. I turn all men to children if my form is unique. Some people prefer me over automatic.