excerpt:
"Experiencing the Baptism of the Holy Spirit
Broadly speaking, a Christian who has not yet experienced the baptism in the Holy Spirit is rather vague about the reality of the spiritual realm. He is like the servant of Elisha whose eyes were closed to that sphere. He may receive instructions from the Bible, yet his understanding is confined to the mind because he still lacks revelation in his spirit.
But upon experiencing the baptism his intuition becomes acutely sensitive and he discovers in his spirit a spiritual world opening before him. By the experience of the baptism in the Holy Spirit he not only touches the supernatural power of God but contacts God’s Person as well.
Now it is just there that spiritual warfare begins. This is the period when the power of darkness disguises himself as an angel of light and even attempts to counterfeit the Person and the work of the Holy Spirit. It is also the moment when the intuition is made aware of the existence of a spiritual domain and of the reality of Satan and his evil spirits. The Apostles were taught in the Scriptures by the Lord after Calvary; but they were made conscious of the real existence of a spiritual realm following Pentecost. Spirit-baptism
marks the starting point of spiritual warfare."
Baptism of Water and the Holy Spirit - Watchman Nee
Baptism of Water and the Holy Spirit
"John indeed baptized with water; but ye shall be baptized with the Holy Ghost" (John 11.15). No mention of water or method of baptism, just the Holy Spirit baptizing.
"Having been buried with him in baptism, wherein ye were also raised with him through faith in the working of God" (Col. 2.12)."