What Would You Call It?

What is a heart really?
Muscles, atria, ventricles bathed in blood
Beating rhythmically to sustain life

Dare I call it a navigator?
Signs, searchlights, paths
Indicating a turn, here or there

Can voices be heard from hearts?
Passionate as that follow-through friend
Bellowing your unsung dreams

Perhaps an instrument of tranquil?
Defiling the popular belief
“Use your head, not your heart”

The backbone of, for love?
Conjoining peoples
Agápe, Éros , Philía, Storgē

What is really is a heart?