As trees are shedding their leaves and winter is rolling in, things die. And we celebrate the month of the Holy Souls in purgatory. We contemplate the end of all things. Today’s Gospel (Matthew 13:31-35) tells us about the death of the just, the death of the saints. The Gospel does this by using two figures – the mustard seed, which becomes a great plant, and the leaven which is introduced into the measures until the whole is leavened. This, we are told, is a parable indicating that only at the end of our lives will the merits be exchanged for eternal reward. So we want to make sure that the whole measure is leavened.