Within people there is a longing and a desire such that, even if a hundred thousand worlds were theirs to own, still they would find no rest or comfort. They try every trade and craft, studying astronomy, medicine and every other subject, but they reach no completion, for they have not found their true desire. Poets call the Beloved "heart's ease," because there the heart finds ease. How can we find peace and rest in anything but the Beloved? - Mevlana Jelaluddin Rumi