I have prayed many times for such a Pentecost. It was obviously necessary for the apostles as they were rattled by Jesus' death and lived in hiding in fear for their lives. Even Peter denied knowing the Master to save his own skin. To get them focused and also qualified by virtue of their own soul development it was going to take a massive outpouring of God's Divine Love to get this group of guys spiritually fit to undertake the task at hand.
Sometimes, I feel like I could use a good kick in the pants too.