An everyday marvel
The Pentecost at which the Holy Spirit came upon the disciples of Jesus who were gathered together was a day of marvels. A rushing wind, tongues as of fire, speaking in different languages -- and that was all before nine o'clock in the morning.
Those aren't the sorts of marvels we can bring about at will. What we can bring about, if we will, is people saying, "We hear them speaking in our own tongues of the mighty acts of God.”