Your life is a vector

I drew something like this in my notepad a few months ago while thinking about the progression of life, what it means to achieve and attain satisfaction with one's life.

I've started to find it useful to think about different decisions as adding another N-dimensional vector to my running sum to date.  Does this choice nudge my aggregate in a positive direction?  Can I bring enough magnitude to it to have a meaningful impact?

I'm probably reinventing the most obvious parts of ages-old conceptualizations of these things, in a soporific way at that. If so, links and references would be most appreciated.