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Previous research finds an association between spirituality and subjective well-being. However, the widespread use of poorly defined concepts of spirituality, tautological spirituality scales, and heavy reliance on cross-sectional samples cast doubts on prior findings. Here, we leverage ten waves of panel data from a nationally diverse longitudinal study to systematically test whether having spiritual beliefs leads to growth in personal well-being and life satisfaction ( N = 3257, New Zealand, 2010–2020). Contrary to previous research, we find that belief in a spirit or life force predicts lower personal well-being and life satisfaction. However, in support of previous speculation, belief (relative to disbelief) in a spirit or life force predicts increasing personal well-being and life satisfaction over time. These findings are robust even while accounting for known demographic influences; they even hold among those who believe in a God but disbelieve in a spirit or life force. The recent growth in spiritual beliefs and decline in traditional religion across many industrial societies motivates further causal investigations of the mechanisms by which spiritual beliefs lead to growth in subjective well-being.

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We leverage powerful time-series data from a national longitudinal sample measured before the COVID-19 pandemic and during the world's eighth most stringent COVID-19 lockdown (New Zealand, March-April 2020, N = 940) and apply Bayesian multilevel mediation models to rigorously test five theories of pandemic distress. Findings: (1) during lockdown, rest diminished distress; without rest psychological distress would have been about 1.74 times greater; (2) an elevated sense of community reduced distress, a little, but elevated government satisfaction was inert. Thus, the psychological benefits of lockdown extended to political discontents; (3) most lockdown distress arose from dissatisfaction from personal relationships. Social captivity, more than isolation, proved challenging; (4-5) Health and business satisfaction were stable; were they challenged substantially more distress would have ensued. Thus, lockdown benefited psychological health by affording safety, yet only because income remained secure. These national longitudinal findings clarify the mental health effects of stringent infectious disease containment.

New Zealand's COVID-19 lockdown in March and April 2020 was among the world's most stringent. Similar to other countries, New Zealand's lockdown occurred amidst pervasive health and economic uncertainties. However, New Zealanders experienced comparatively less psychological distress. To test theories of pandemic distress mitigation, we use national longitudinal responses with pre-COVID-19 baselines and systematically quantify psychological distress trajectories within the same individuals during the lockdown (pre-COVID-19 = 2018/2019; stringent-lockdown = March/April 2020; N = 940). Most distress indicators were minimally elevated. However, there was a three-fold increase in feelings of worthlessness. Neither satisfaction with the government, nor business-satisfaction, nor a sense of neighbourhood community were effective distress defences. Perceived social-belonging and health-satisfaction mitigated feelings of worthlessness. A silver lining was a relief from feelings of effort, which social-belonging fostered. That social-belonging and health satisfaction could quell serious distress among those low in government confidence, low in business satisfaction, and low neighbourhood community proves that distress mitigation is possible without shifting a population's general political, economic, and civic attitudes. Protection of income and containment of infectious disease threat reduces mental health burdens. Though feelings of worthlessness surge during lockdown, such feelings attenuate from interpersonal belonging with people one already knows.