If we want to have fellowship with a supernatural being like God, then we should not be surprised if this also happens in a supernatural way. According to his words in the Bible, our human minds cannot understand God and his ways - and yet we constantly try to do just that. The work of the Spirit of God, the Holy Spirit, on and in us is mysterious and a very controversial and divisive topic among believers. Based on my current knowledge, I suspect at least three different modes of action:
First, the Spirit works on each person to draw him to God. Nobody can become a believer without the Holy Spirit. This testifies to us that Jesus Christ is the Son of God. Anyone who converts to him and believes will be sealed with the Holy Spirit. In a sense, every believing Christian “has” the Holy Spirit. But as long as the "born again" "baby" Christian who has become a believer does not completely surrender his life to the Holy Spirit and allows himself to be led by him, he will continue to be dominated by his old man, the so-called flesh, and his sins (carnal "Romans 7 -" Christians). A Christian who still serves sin "limps" in two directions and can therefore be influenced by two sides. The Bible clearly lists what the fruits of the Spirit are - and what are not. This battle in and around us must come to a final decision and be won. The disciples of Jesus had recognized Jesus through the Spirit as the Son of God, but they still argued, wanted to have people of other faiths consumed by fire, fell asleep at the wrong time, left him and denied him. Even when the risen Christ breathed the Holy Spirit into them, this was obviously not the promised baptism of the Spirit, but rather the authorization to forgive sins.
Only with the baptism of the Spirit promised by Jesus at Pentecost did they become powerful, constant and fearless witnesses. They were no longer under the control of sin and Satan; they had become spiritual "Romans 8" Christians. With the power from on high, they moved mountains and lifted the world from its hinges.
In the book of Acts, for example, the criterion for deacons and evangelists is that they should be men full of the Holy Spirit. In addition, there seem to be particularly blessed states in which people are particularly full of the Holy Spirit, otherwise why should the Bible mention this separately? In these moments, God spoke directly through people, took powerful actions, supernatural things happened, the boundaries between heaven and earth were opened, and so on.
While there may only be a one-time baptism in the Spirit, being filled with the Holy Spirit seems to be possible (and necessary) again and again. In any case, the Bible calls Christians to become full of the Holy Spirit. Our ultimate goal is certainly that this being filled and led by the Holy Spirit becomes a permanent state, an abiding in him. So that, like our first brother Jesus, we may speak what we hear the Father speak and do what we see the Father do.