The Baptism of the Holy Ghost is the very most important experience everyone should make SURE they have in their life.
The only place to find out how this comes into our lives, in the Book of Acts. God has never changed this glorious experience and there is no other place which describes it. He has not changed how it is received and he has not changed the requirements for receiving it.
The churches of today (maybe not all of them; but the majority) claim that this experience is not for us today; or they say it comes DIFFERENT. They will tell you speaking in the unknown tongue has ceased. But they cannot give any Scripture for this; for there is none.
Now, If God did not tell us it has ceased, certainly no man has the authority to say it has. When the Holy Ghost comes into a person, the Holy Ghost will UTTER words which are NOT your words. You will not be doing it; He will. This comes out in another tongue; not an earthly language; it is a heavenly tongue; speaking mysteries to God. Also, Prophecies accompany this experience. This way, the Holy Ghost has spoken through you, with your tongue, but with words you did not express. It comes out in another tongue; and also in your own language. But in both, it is the Holy Ghost speaking.
He fills you with such love and joy and peace with this first filling of the Spirit, that there are no known words which can express it. It is joy unspeakable and full of Glory.
Every person should seek God, untill He fills you with this Glory. Acts 2:38 says one should first REPENT of their sins (this means to be sorry enough for them to give them up)–then be Baptized in water in the name of Jesus Christ for the remission of those sins—then you are promised to receive this filling of the Holy Ghost.
This Holy Ghost will lead you and guide you into all truth.
God bless this to your understanding.