ObjectivesA recent publication stated that mind–body practices (MBPs) of meditation and yoga boost self-enhancement instead of quieting the ego, contrary to these practices’ traditional goals. Surveying practitioners directly after MBP classes or at other time points, the researchers found higher levels of self-esteem and communal narcissism after MBP and interpreted these as indicators of a boosted ego. However, their conceptualization was criticized, and empirical studies on other constructs representing a quiet ego, namely self-compassion and global identity, found that these characteristics were stronger in mind–body practitioners than in non-practitioners and fostered by MBP interventions. This study aimed to bring these research strands together.MethodsUsing a preregistered known-groups approach, 211 mind–body practitioners (yoga, meditation, or both) were compared with 190 non-practitioners recruited through a German online panel. The participants answered an online questionnaire assessing self-esteem, communal narcissism, self-compassion, and global identity. Moreover, they reported their pro-environmental behavior and climate policy support.ResultsThere were no differences regarding self-esteem, and—as only one aspect of communal narcissism—a higher expectation among practitioners that they could positively influence the world. Moreover, they reported higher levels of self-compassion and global identity. MBP was indirectly related to stronger pro-environmental behavior and climate policy support through higher global identity, and partly through higher self-compassion.ConclusionsMBPs might have the potential to contribute to a quiet ego rather than to self-enhancement. Moreover, they might motivate people to engage in societal challenges that go beyond mere self-interest and contribute to a sustainable future.Study RegistrationAspredicted.org: #44032.