Overall, I think an ability to keep clear perspectives in life is a more essential factor in achieving happiness. By that I mean an ability to have a clear sense of what is important in our lives (the welfare of our families, the quality of our relationships, making other people happy, etc.) and what is not (a problem at work, getting annoyed about trivial things, etc.). 66
Like self-awareness, this is also very difficult to achieve, but I think these are the two factors that may be the most important for achieving happiness.
