In honor of “Earth Day” 2026, we invited the people of Timișoara to a philosophical lecture on the theme of “Inner Ecology.” Together, we uncovered the intimate mechanisms that animate life within a natural ecosystem, such as that of the forest, discovering that this hidden world is not so different from the one within our own souls. The ideas of Plato, Heraclitus, and the Stoics offered inspiring perspectives, helping us recognize the danger of allowing our inner landscape to become a monoculture and thus grow more aware of the laws that can awaken our own inner regeneration, as well as of the perils of polluting our minds and hearts.