Also known as Beltane and Walpurgis Night, the festival of May Eve takes place at the midpoint between the Spring Equinox and the Summer Solstice. In Ireland, this is the time of year when the invisible fairies are in a celebratory mood, and they dance to the music of fairy pipes all through the night. According to folklore, the only way to see the fairies is to carry a primrose and peek at them over its petals. And if you don't want fairies in your house on this magical night (they really are mischievous), scatter primroses in front of your door. The fairies won't come in, for fear of being seen.