The technique of examining and interpreting signs, which may be called “reading,” can be traced back to hunting. Many animals track by smell, which communicates directly to the instincts. Does it smell bad? Stay away! Does it smell good? Follow it and eat it! When a wolf comes across the scent, it doesn’t wonder which direction to go, it doesn’t interpret the smell. If the wolf turns left and the yummy deer smell fades, it turns to the right where the smell is fresher.