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P. A. Giraldo Patiño, “Existential Emptiness and the Loss of the Meaning of Life in the Postmodern Subject: Challenges for Christianity in the Twenty-First Century”, Cuest.Teol., vol. 41, no. 96, pp. 425–444, Dec. 2014, Accessed: Sep. 02, 2026. [Online]. Available: https://revistas.upb.edu.co/index.php/cuestiones/article/view/307