Obey to the vision from heaven

Acts 26:1-23
Why should any of you consider it incredible that God raises the dead?
Paul explained to King Agrippa, I was not disobedience to the vision from heaven. I preached that they should repent and turn to God and prove their repentance by their deeds.
Once again Paul is called to speak in his own defence. As he told his story to the hews in Jerusalem, now he tells it to the king. The central issue is resurrection - "Why does it seem incredible to you that God should raise the dead?" - specifically Christ ' as the first to rise from the dead'.
The story here differs in emphasis from the account in chapter 22. The 'goads激將法' are the pressures compelling Paul to a complete change of direction in life.
Why?
Paul didn't disobedience to the vision from heaven, so he preached the message of repentance and turn to God.
Paul is also emphasize the repent and the deeds to prove your repentance.
How?
Obey to the vision from heaven. What is the vision from heaven to me?