The future for the apostles temporarily collapses. They are confused and the Master is gone. The Promise of Christ that he will send the Spirit becomes reality on Pentecost.  Since the Holy Spirit filled their hearts and minds they began their mission for which they were chosen; to continue building the kingdom.  In the scene, we find Mary and the disciples gathered in the upper room on Pentecost when the Holy Spirit descended upon them in ‘tongues of fire”.

The Coming of the Spirit

When the time for Pentecost was fulfilled, they were all in one place together And suddenly there came from the sky a noise like a strong driving wind, and it filled the entire house in which they were. Then there appeared to them tongues as of fire, which parted and came to rest on each one of them. And they were all filled with the holy Spirit and began to speak in different tongues, as the Spirit enabled them to proclaim.