Signs...

Ever feel like the universe (God, life, etc) is trying to tell you something, but you're just not listening (or just refuse to listen)? How do you tell the difference between a sign (a warning sign) and a challenge? How can you tell if life is just giving you a challenge to overcome... or a big flashing "DANGER!" sign? When does perseverance turn into stubbornness?

Sigh... if only life came with an instruction manual... but then again... maybe it does, and we're all just refusing to read/listen to it...