Miracle as defined in the dictionaries is "A surprising and welcome event that is not understood by natural or scientific laws and is considered to be divine."
If we recollect the miracles performed by our Lord, those were all beyond the understanding of the people at that time. Nobody will have every expected the plain ordinary water to change to wine, making the crowd of 5000+ with 5 loaf of bread and 2 fish. Nobody will ever believe that someone can walk through water and control nature through his words... All these happened not in a span of time, but it was a immediate. This was done by no one else, but by the Lord who made us and given life into us. This is the same Lord who has provided all that we have now. None of those that we claim to posses is ours, but that provided by him to us.