While the strict celebration of this most venerable of observances is optional, there is a certain rhythm to our Faith’s liturgical cycles in harmony with those of the natural world. An easy way to remember when the days are celebrated are contained in these ancient nmemonic poem? “Lenty, Penty, Crucy, Lucy”, or else “Fasting days and Emberings be / Lent, Whitsun, Holyrood, and Lucie.”