The folktales and myths of Ireland are a very rich seam of stories that have been tapped into down through the centuries. They are all evocative and string and have generally been retold or adapted in some way. Even the story of the famous patron Saint Patrick has been changed and imagined in many different ways. He is so well known his official day is celebrated around the world with everyone having some link to Irish descent and deserving of a St Patricks Day Gifts like those available from https://www.shamrockgift.com/st-patricks-day.
One of the best tales is the rather sad story of Oisin and Niamh After the Tuatha De Danann had left the world to go and live in the blessed realm the people of Ireland were saddened but knew that they would still visit and look after them. In a coast village two friends were walking on the beach when a great wave came rushing towards the shore. Shouting in alarm the village came to see but the great wave stopped short of the village and crashed on the shore. Out of the wave emerge the beautiful Niamh. The villages cowered from her but Oisin stood his ground for he was greatly entranced by the woman.
He climbed aboard her horse and took her around the country so she could see how it had changed. They fell in love and were married, Oisin leaving with her to live in the blessed realm. He too became immortal and they were very happy. After a few weeks Oisin asked to return to his village to see his family. Niamh warned him not to touch the ground when he did lest he become mortal again. Oisin went back but found that years and years and passed, time moving more slowly in the blessed realm. In shock he fell from the horse and turned into an old man