When the Holy Spirit teaches us, that is what we call Holy Ghost School

"But the ANOINTING which you have received from HIM abides in you, and you do not need that anyone teach you; but as the same ANOINTING TEACHES you CONCERNING ALL THINGS, and is true, and is not a lie, and just as IT HAS TAUGHT YOU, you will ABIDE in HIM."
(1John 2 : 27)

Do you want the Holy Spirit to become your personal Teacher?
Do you want Him to begin to teach you the ways of God?
Do you want Him to teach you all things you need to know in this life?
Do you want Him to begin to lead you and direct you in the way you should go?

All you need is to ask Him and He will begin to do so!
He is waiting for you to request.
When He begins to lead and teach you, and you begin to obey His leading willingly, then you have joined the Holy Ghost School!

It is as simple as that!

Yes, Holy Ghost school is important in these prensent days for every believer. I dont joke with my covenant time.