So, Jesus did pray to the Father that He would send the Holy Ghost; and Paul was given sight and he was filled with the Holy Ghost. Who is the Holy Ghost and what is his purpose? We will let Jesus answer that question since he said the Father would send the Comforter, which is the Holy Ghost, in his name.
(John 14:26)
26 But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.
It’s hard to believe, but most preachers just grab a title and say, ‘they have been called to preach’, often without the slightest understanding of what they are trying to do for the souls of the believers. Preaching salvation from the foundation of truth is a heavy cross to carry.