To say something is "clear as mud" isn't complimentary. We prefer things to be logical, neat, and linear. The problem is, life doesn't play according to our rules.
Light is the perfect example and metaphor for life; paradoxically behaving like a wave and particle -- sometimes it passes through glass, sometimes it bounces off. Likewise, our rigid rules for life need to be traded in for a flexible approach; what seems mutually exclusive, is interconnected.