I was browsing through Google + when I came across a post on the Four Agreements. There is quite a bit of existential stuff. If you were sieved it out and stick to the main points gives you some clarity. The Four Agreements as interviewed by Oprah Winfrey.
Agreement #1 : Why You Should Always Be Impeccable with Your Word
Agreement #2 : How to Not Take Things Personally.
Agreement #3: Don’t make assumptions
Agreement #4: Always do your best