Innovations in technology, infrastructure, and policy often come up in conversations about making higher education more sustainable as universities worldwide respond to the urgent need for sustainability. A deeper change requires awakening inner values, consciousness, and wisdom, even though these aspects are essential. This study looks at the role of spiritual intelligence as an important but overlooked factor in creating greener higher education. With spiritual intelligence, which is the ability to act with vision, compassion, and ecological awareness, learners and educators can move beyond practical thinking and build a connection with the natural world. Spiritual intelligence can promote environmentally conscious actions on college campus and beyond by fostering self-awareness, empathy, and purpose-driven choices. Universities can become centers for fostering environmentally aware minds and nurturing hearts by adopting eco-spiritual pedagogy, focusing on values, and strengthening community ties. This study explores three ways that integrating spiritual intelligence into higher education supports sustainable practices: (a) Curricula; that weave eco-spiritual values into teaching and learning, (b) Institutional practices; that establish green policies and campus cultures embodying ethical responsibility and mindfulness, and (c) Societal impacts; that prepare graduates to be eco-leaders who connect professional skills with sustainable living.