In Celtic folklore, fairies play a multifaceted role in human affairs, sometimes serving as helpers or, at other times, as tricksters. They are often associated with the natural world, influencing the fates of humans through their whimsical yet capricious actions. This ambivalence reflects human beliefs about nature and the unseen forces affecting life. Fairies can bring blessings or mischief, emphasizing the delicate balance between human desires and the unpredictable aspects of existence.