Can’t all miracles be ascribed to natural causes?

From Saurabh:
it appears that all the miracles had natural reasoning behind them like in Gopalji pastime, the deities could have been moved by the devotee and in Gopinath ji pastime it could have been a mere dream which was taken too seriously. Then how can we determine whether miracles happen or not? and should we approach every miracle sentimentally or by being rational?