Searching for the Celtic spirit

What fascinates me is the fact that the smaller harps, the no-pedal harps, are widely called 'Celtic harps' all over the world. They could have been called 'small harps', 'troubadour harps' or something else. But the term 'Celtid harp' stayed. Believing that there is more to it that just a technical term, I want to explore what draws people to vbuy a 'Celtic harp' and play 'Celtic Music'; The term 'Celtic' points at something deeper, something many people nowadays are looking for and need.
This book is not particularly about Ireland, and even less so contemporary, urban Ireland as this, I believe, is not the reason Celtic harpist come to the harp. I am interested to explore what exactly brings them to this quite unique instrument, and why Celtic. Exploring why they mainly play Irish traditional music on it is yet another question I will give some thoughts.