Transformed by the Holy Spirit

Acts 2:14-21
Peter stood up with the Eleven, explained to the crowd that they are not drunk, as they suppose. It's only nine in the morning. It is what was spoken by the prophet Joel.
Joel 2:28-32
In the last days, God says, I will pour out my Spirit on all people. Your sons and daughters will prophesy, your young men will see visions, your old men will dream dreams. Even on my servants, both men and women, they will prophesy.
And everyone who calls on the name of the Lord will be saved.
Why?
The impassioned激切 address delivered by a transformed Peter evokes an immediate response. This is the work of Holy Spirit on Peter.
Peter is transformed that he remembered all Jesus had said to him, and he knew the Bible even he was a fisherman.
How?
The Holy Spirit make us know the word of God and transform our life to understand the vision of heaven. Waiting for the Holy Spirit from heaven when I am ready.