Firstly, I was really curious to know the content of this article because of the title until I read through this post, I like the way the writer expresses his idea on self-reflection on a sense of meaning and purpose, community bonds, and serving others. These combined do have a vital role in getting a purposeful life and by being rational following these I can achieve a lot of things hopefully..
My peer-reviewed article in a psychology journal on the topic of meaning and purpose in a non-religious setting is now accessible without a paywall for a limited time, so get it while it's free if you're interested. I'd be interested in hearing your feedback on it. For those curious, the article is not directly related to my Intentional Insights project, but is a part of my aspiration to raise the sanity waterline regarding religion, the focus of Eliezer's original piece on the sanity waterline.