Love is a special and complicated emotion which is quite difficult to understand. Although most people believe that love revolves around the heart, it actually occurs in the brain. Artists, poets and painters all epitomize the heart as the love symbol, but it’s the brain that generates chemical signals to make people understand love. There are different forms and styles of expressing love. To describe these styles, the Ancient Greeks came up with four terms (Eros, storge, agape and philia) to symbolize the four types of love. Let us look at these four loves in details.