I read "So Good They Can't Ignore You" last year and was having the same question: "what is my mission in life and how to get/realize/understand that?"

My conclusion was: I don't know and don't have a specific mission. The closest I have to a mission is a set of positive (may probably not conscious) principles in life that I'm sticking to. Examples:

- always be improving - learn, learn, learn - work hard - presented with negative or ambiguous choices, choose the best available one (don't screw up everything because of frustration)

I'd also be curious to hear opinions on these:

- Is it "necessary" to have a specific higher mission? Can't I just stick to the set of positive principles? - Do I have to actively be looking for a mission? Or I wait and let it happen?