The Ancient Druids had tools used for predicting the future with one example being the divination spoons, a small set of golden leaf shaped items which were concave with a small hole upon one of the leaflets. Blood would be blown into this hole using a small tube and the breath of a Druid so that its final patterns could be used to predict the outcome of certain events. This is important because these interpretations were completely subjective (e.g. if a Druid wanted to go to war, many people could potentially die dependent upon how they read these natural signs as prophecies). Manipulation of these results and their prophetic message would be undetectable by common people as only the Druids knew how to read the signs which they were looking for. This opens the door for corruption and/or the tampering of results and their message. The Druids remained so powerful that even Celtic monarchs revered and respected their authority. Despite this enormous influence, apart from divination spoons, definitive and conclusive evidence of Druid prophetic tools have never been found