I've always marveled at how beautiful the eyes of snakes are... snakes are often known as vicious creatures that kill other animals through strangling, poisoning, biting. However, they have one of the most intelligent and beautiful eyes of any reptile or animal in fact, and I think that symbolizes that even danger and darkness has beauty in it! Like life. The more poisonous a snake is, it seemingly has the most wise and glittering eyes.... 

A cottonmouth's eyes reflecting the woods around him...

A rattlesnake...

A green mamba...

"Turn your wounds into wisdom."