The Holy Spirit is not individual, person, ego, I. It permeates everything.
If the Holy Spirit fills us, it means that our conscience is clear. We enter a state of Grace. Miracles happen.
The Holy Spirit and our consciousness is one and the same except for the differentiation that arises when the undifferentiated consciousness gets trapped in space and time in the gross human body.
When the gross human body returns to Mother Earth, the differentiation is no more and the undifferentiated consciousness remains.
We are one with the Holy Spirit.