@oldngray
The Bible teaches the Holy Spirit dwells in me just like God and Jesus does. There is one Holy Spirit, just like one God and Jesus. God literally dwells in Heaven. Jesus is literally seated at the right hand of God
The Holy Spirit dwells in me via His word. He wrote it. In fact, that was his part of our salvation. God sent Jesus. Jesus died. The Holy Spirit penned the Bible.
I know when I am obedient to that word and disobedient to that word. I know what the fruits of the Spirit are by what he has written.
There is not a literal person of the Deity inside my physical body. The Bible does not teach this.There is not a voice from Deity telling me in a voice that I have done right or wrong. My conscience is not Deity nor is it infallible. But, it is and has been trained by the Holy Spirit via His word. That's how he is in me.