Just three birthdays are celebrated by the Church in the Liturgy each year – that of Jesus at the winter solstice, his mother’s on 8th September and that of his cousin John the Baptist near midsummer’s day. John’s birthday comes just after the longest day of the year, when the light begins to decline — just as Jesus’ birthday is after the shortest day, when days begin to lengthen. The placing of these two feasts summarises John the Baptist’s mission: ‘I must decrease, he must increase.’