Nice post that has got me thinking!

I do think the things we do affect those around us, and can eventually come back around to us.

I think we do have lots of good and bad emotions and thoughts, which we have to balance and make use of. A battery provides energy because it has a positive and negative terminal. If we're always good, people walk all over us. If we're always bad, people avoid us. There are appropriate times to feel joy, peace, anger and fear. Emotions motivate us. It's tricky to balance them but maybe we do need to integrate them all into a complete personality.

Just my random thoughts on your fine article!