The Celtic Warriors of the past believed that the entire soul of a person resided inside of the head. So, when it came to destroying their enemies, it wasn’t uncommon for a Celt to take the head of the person they defeated. In fact, having a collection of heads was seen as somewhat of an honour. It was something to brag about. These guys were brutes- they loved to fight, and were excellent warriors. They were smart, too, having pioneered their own wooden roads before the Romans did.