Besides diet and exercise, there is also the issue of social hygiene. Many people have become hardcore individualists. They do not even have a husband or a wife, let alone have meaningful interactions with other family members. You see, regular sex is not just a way of having fun. It is also something that contributes to your mental well being and assists in keeping you out of depressions and other mental issues. The same holds true for meaning-seeking spirituality such as in religion and meditation. It is one of the things that helps keeping you mentally healthy. For hardcore individualists and anti-spiritualists is their entire lifestyle that is in question.
> The same holds true for meaning-seeking spirituality such as in religion and meditation. It is one of the things that helps keeping you mentally healthy.
Ironically that's a fairly meaningless statement. "Finding meaning" can actually be counterproductive if I find a self-destructive meaning or one that hurts the people I care about.
Now if you mean we should break out of day-to-day scurrying about and searching for actual truth... I can buy that. But I've seen people "find their own meaning" with catastrophic personal consequences.