Complex sentence: Some interpretations have the Cailleach and Brìghde as two faces of the same goddess, others describe the Cailleach as turning to stone on Beltane and reverting back to humanoid form on Samhain in time to rule over the winter months.
Split into simpler sentences: Some interpretations have the Cailleach and Brìghde as two faces of the same goddess. One legend describes The Cailleach as turning to stone on Beltane and reverting back to humanoid form on Samhain in time to rule over the winter months.