A quick thought

One who travels through life with his eyes open sees many potential problems, which he is thereby able to attempt to avoid or repair, but also wastes energy on problems that are not true threats.

One who travels through life with his eyes closed is only affected by problems that are true threats, but is always significantly harmed by these problems, due to his inability to mitigate them.

The best path to follow in life would therefore seem to be a combination of the reaction of the former to the true problems and the reaction of the latter to the illusory.