The Holy Spirit a promise from Our Lord Jesus Christ for all who believe him and trust what he did.
That promised gift could only be given by God the Father if Jesus Christ died for our sins.
It is ofcourse spiritual and there is no evidence as also our soul is no evidence because we cannot detect it.
This is a mystery revealed to our minister Paul by Jesus Christ.
But this spake He of the Spirit, which they that believe on him should receive: for the Holy Ghost was not yet given, because that Jesus was not yet glorified.
Will live in a time were we receive the Holy Spirit in just believing and trusting in the gospel of Paul. Let me explain you this mystery from the Bible.
Even the Spirit of truth, whom the world cannot receive, because it seeth him not, neither knoweth him, but ye know him, for he dwelleth with you, and shall be in you.
Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come
This is Jesus Christ speaking to his apostles that the Spirit will come and help and guide them. Because the Kingdom of Heaven was still at hand, the Spirit gave the apostles power in the name of Our Lord Jesus Christ to perform signs and wonders for the Jews to accept Jesus as their Messiah.
They didn't as we know, so came another mystery. That we Gentiles could receive Grace from God.
In the beginning their were many ways of receiving the Holy Spirit when you read the Bible. But in the end it is only by Faith and Believing the Gospel.
The Holy Spirit guides you to find the truth who God is and to understand the Bible and to become more as Christ. And in the end sealed us with the promise to have eternal life with God and Our Lord Jesus Christ.
But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of his.
Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you?
1 Corinthians 3:16
And without controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto Gentiles, believed on in the world, received up into glory.
1 Timothy 3:16
And the very God of peace sanctify you wholly, and pray God your whole spirit and soul and body be preserved blameless unto the coming of our Lord Jesus Christ.
1 Thessalonians 5:23
To whom God would make know what is the riches of the glory of this mystery among the Gentiles, which is Christ in you, the hope of glory.
These are some mysteries revealed to Paul, the Spirit dwelleth in you when you trust the Gospel and believe what Jesus Christ has done at the cross for our sins.
I am so happy and thankfull to have received this free gift. We will live at the end of the Church age that started with the Jesus and the apostles. There is a big heavenly sign coming soon. I'm taking it seriously and not for granted.
If you want to learn more about, trust and believe the gospel.
If any questions ask me and i have also resources to find possible answers.