Rites are an external symbol of an internal event. The latter is necessary for salvation. The former we do by the command of God as a testament to the world, our bretheren, and our own souls. If this were not so, how is it that the thief beside Christ on the cross was able to enter into glory?
"Then he [the thief] said, “Jesus, remember me when you come into your kingdom.” Jesus answered him, “I tell you the truth, today you will be with me in paradise.”"
Luke 23:41
Who not being baptized by fire (The Holy Ghost) can enter into God's presence?
No ritual is needed for God to provide the Holy Ghost to the repentant soul.
James says "show me your works and I will show you your faith" and "faith without works is dead".
The point being that true faith will bring forth works of its own accord, and that "faith" that does not do this is dead. Salvation is in faith alone (see especially Rom. 3).