Heart: Symbol of Love!!!! You knew that the heart of the way that we know exists due to a couple of swans? They say that to observe 2 swans together, great pals their long necks united form a drawing very interesting and as swans are very faithful, living together until death, it was decided to assign this drawing the human heart, as this is a symbol of love. Here in this post you will find several reasons to fall in love with. Are beautiful hearts made of crochet.