You are referring to Saul's conversion. And when he received the Holy Spirit.
I am talking about when he was Paul and received the revelations of Jesus Christ.
14 And I advanced in Judaism beyond many of my contemporaries in my own nation, being more exceedingly zealous for the traditions of my fathers.
15 But when it pleased God, who separated me from my mother's womb and called me through His grace,
16 to reveal His Son in me, that I might preach Him among the Gentiles, I did not immediately confer with flesh and blood,
17 nor did I go up to Jerusalem to those who were apostles before me; but I went to Arabia, and returned again to Damascus.
18 Then after three years I went up to Jerusalem to see Peter, and remained with him fifteen days.
19 But I saw none of the other apostles except James, the Lord's brother.