The name given to a day set apart for special devotions, meditation and instruction for the members of a parish, or school or society. There is always a celebration of the Holy Eucharist, hours of prayer with a meditation or instruction given by the Priest, with times of silent prayer and intercession. Such days have been found to be very helpful in deepening the spiritual life, and are usually conducted by a Priest well experienced in such work, and who is specially invited for the purpose.