I'm someone who believes in meaning. Not that there's something concrete we can point to, but I think that at any given time we should be able to point to something that we're striving for that comes from the depths of who we are.
More coming soon, but here's some...
Measuring Human Asset Utilization - This is how I decide what I work - this isn't an explicit calculus, but it's roughly what my brain ends up doing in my estimation.
The Rational Road to Atheism - I posted this many years ago, but I think the videos hold up pretty well. If you want to question your faith, or fill in the gaps of your mental model, this is worth a look.