Ibn Ṭufayl and Kierkegaard share existentialist elements around nature. Ibn Ṭufayl believes in nature as the best teacher of philosophy and philosophical reasoning. For Kierkegaard, being human means being dependent on and embedded in nature. This makes Kierkegaard a highly relevant interlocutor for contemporary Eco philosophy and ecocriticism. Ibn Ṭufayl’s opinion on the subject is discernible in his novel called Ḥayy Ibn Yaqẓān. Pursuing the truth of life, Ḥayy, the main personage of Ibn Ṭufayl’s novel, finds his way through four travels of mind. Nature is the context of his travels, so determined to protect nature, Ḥayy takes considerable care of fauna and flora as he steps into the highest levels in his ascent. In the first travel, Ḥayy begins from nature from which is created and in which is raised by a roe mother. In the second travel, he figures out all of natural affairs insofar as becoming a leading scientist. In the third travel resulted in the former travel, Ḥayy becomes successful in philosophical analysis. In the fourth travel, Ḥayy goes forward with philosophical analysis and reaches mystical level. The mystical experiences go on so that through all natural beings and events Ḥayy conveys to God. In this last pace, Ḥayy returns to nature and becomes a nature protectionist. At the end of story, Ḥayy faces a religious stranger showed up from another island. Ḥayy finds his beliefs thoroughly in accordance with his own opinions.