Gautama touched the ground.
The Messiah came, and is expected to return.
The Messiah will come when all hearts are ready, when all minds have turned.
The future Buddha is still a bodhisattva, but you can visualize him as a Buddha in the present if it helps.
With God, all things are possible.
With God, all things are possible except the forgiveness that only the person you have wronged can give.
With bodhi-mind, all things are as they are: impossible.