What does it mean to be baptized in the Holy Spirit? It is not water baptism, though water baptism is important, too.
Instead of the preacher baptizing a person into water, Jesus will baptize a person into the Holy Spirit.
The Holy Spirit comes INTO a person upon salvation, but the Holy Spirit comes UPON a person with this subsequent baptism. To 'baptize' means to immerse or dunk or submerge, so the Spirit has come within you to abide, but He needs to come upon you for service.
When the Spirit comes upon a person, He brings power.
The Christian needs Holy Spirit power to live and also to preach and minister to others. This power includes speaking in tongues, and the other gifts of the Spirit (1 Cor 12).
If you would like this baptism of fire, ask Jesus to baptize you in the Holy Spirit and fill you with His power NOW! He will do it.