The article says the study suggests there's not a really strong causal relationship in either way which surprises me a little but yeah I can see it given the experience.
And If I were to find religion suddenly again now I imagine it may only increase life satisfaction based on the fact I have no real community at the moment and that I think is probably a more interesting study.
How much has external community (i.e. not close friends, partners and families) breakdown occurred over the last 40 years and what is the effect on our life satisfaction? My grandfather was a part of a bunch of men's clubs etc last I checked most of those are floundering now.