I can only imagine that after ten days of praying together [the disciples] were tired and had probably exhausted everything they could think of to pray about. Suddenly, their affection for Jesus was taken to a level they had never known or experienced before. Their spirits became empowered by the Holy Spirit in that suddenly moment. They were alive, really alive for the first time in their lives. They spoke of things they didn’t understand. Two worlds collided. And the understanding of God that exists in that heavenly realm actually influenced the language of the one hundred and twenty here on earth. They spoke of the mysterious ways and the mighty deeds of God.
This baptism is likened unto wine and not water. Water refreshes while wine influences. When God calls a particular baptism a baptism of fire, it is obviously not one of mere refreshing. Heaven has come to influence earth in this baptism.