I believe that love is the greatest power there is to produce great results and that the most important decision you can make is who you choose to have loving relationships with. A good love partner, or better yet good love partners (your spouse, your family, your friends, and your business partners) who will care deeply about your wellbeing and help you through your downs as well as your ups is the best thing in life. By love, I mean caring about the person so that their being well feels like your wellbeing.
If you have love, or at least empathy, you will have the foundation for harmony, peace, and prosperity-just as if you have hate, you will produce fighting, war, and destruction. All major religions are most fundamentally about how to produce harmony, peace, and prosperity through love and empathy - e.g. “do unto others as you would have them do onto you,” karma, etc.
Psychologists have shown that loving communities lead to greater happiness, health, and effectiveness. Love is both joyous and functionally good because 1+1=3. To explain what I mean, a little bit of my help for you can make a big difference in your life just as a little bit of your help for me can make a big difference in my life, so us exchanging these gifts of help give us a lot more than we have alone-and it produces the joy of love on top of that. Conversely, 1-1= -3. Look at how hate in war is causing so much brutality and destruction.