The heart in some cultures is the spot of physical and spiritual energy and represents the "central wisdom of senses as opposed to the head-wisdom of logic." It is empathy and understanding and life-giving. It is a representation of love. It’s is Often referred to as the seat of emotions, and the heart is indicative of affection.
In old Egypt, it represented life-essence, as the mummified had their heart preserved, the first organ of human to live, and the last to stop. Hearts also harbor senses of intellect and common sense. It is also believed to be the connotations to the soul, along with coming will and courage. The heart is the central point (with the brain and sexual organs being the endpoints) of the vertical scheme of the human.