I can accept that.
What is Baptism? The word baptism is a transliteration of the Greek words baptizma or baptizō. The most basic definition is to dip or to immerse.
redeeminggod.com
I really ran into immersion in foreign language classes, taught by immersion. In the class you use the language being taught. The purpose was to be enveloped with knowledge of the language.
John the Baptist preached Repentance. Water baptism was attached to that baptism. Repentance is not salvation, but puts you in the situation of needing something to deal with the sin you just discovered you had.
The OT Law was added because of sin. We can be immersed in the Law. Jonah was glad to be out of the fish.
Immersed in Jesus is understanding Salvation.
Immersion in the Holy Spirit is understanding power to be a witness.
Is baptism a ceremony? Well Repentance had a ceremony. It gets harder to track the later baptisms.
Teaching them all things gets harder still.
I tend toward learning (immersed) in the fullness of God.
I will try and not clog up your thread.
eddif