This is the beginning of the Myth of Cuchulainn as set out by W.B. Yeats.
There exists a fountain in Scotland that is said to give a person eternal life, but only bubbles up once every few years. However, it is watched over by the Guardian who resembles a Grey Hawk, which in Irish Tradition is a symbol for death. In this play, we witness an old man who has waited to drink from it, but has always been distracted by the stone guardian in one way or another. Will this new man, Cuchulainn, who comes for the same be able to withstand her distractions and be able to share the fountain of life between him and the old man?