"Aha!" meanings, signs, and symbols

An "Aha" moment for me was from the chimpanzee section in the first article. I can now say with out a doubt that I understand what a sign is. "In bringing (something else) to our minds, signs give meaning to our lives." When I read this it was completely an "aha!" moment. Thought about how we as humans communicate and perceive words or object where now very clear to me and shed some light on little things that I would normally never take the time of day to understand.