If you want to know why, read John

My mother believed in miracles - and when I was born very sick, she baptized me herself, because at the time, the Catholic Church taught that unbaptized babies that died went to Limbo.  We look at the miracles of Jesus, and how the Synoptic Gospels refer to them as "deeds of power", while John refers to them as "signs".  We see that there is a very deep reason why John does this - and we consider how this reveals the very theological nature of the Gospel of John.