The 50th Gate of Wisdom: What Does It Look Like?

The Rambam writes that from all his major works that he wrote he considers his Moreh Nevuchim as his magnum opus. There he attempts to understand and explain the way of G-d based on Aristotelian philosophy. The Vilna Gaon writes very sharply against the Rambam for adapting alien Greek philosophy instead of the wisdom of our Sages and the Mystical teachings of the Kabballah and Hashkafa. How come the Rambam and the Ramchal and many others were so intrigued by the wisdom of science and the liberal arts such as literature, languages, art history, music history, philosophy, history, mathematics, psychology etc. Furthermore, what does the Midrash (Eichah 2:13) mean when it