“Blessed is the One who did miracles for our ancestors in those days and in our times.” (Hanukah prayer)
We often use the word “miracle” when something unlikely–or even seemingly impossible–actually comes to pass.  But in Jewish teachings, just being unlikely is not enough to qualify an event as a miracle.  To be a miracle, an unlikely event must also advance a divine purpose in our world, such as healing, justice, or freedom.