In the human body: the upper half of the upper body, the lower half of the body. At the bottom of the body is the most important element directly related to life. Brain is also important in the upper half, but you see: brain or heart determine the decisive moment of human "departure"? When the beat stops, it marks the moment when people die, but the brain is not dead, brain death is slower. Because HEART is more important and is most important! From there, Westerners bring the image of the heart to symbolize what they value most: LOVE.
