The HolySpirit is:
1) Comforter
2) SpiritOfTruth
3) witness of Jesus Christ. -> Peace is a SpiritFruit state of comfort. -> Jesus is the Truth so the HolySpirit gives revelation knowledge of the Truth. -> We cannot adequately testify of Jesus without His HolySpirit inspiration.
But just as Jesus is in His HolySpiritFather Joh 17:21, and His HolySpiritFather is in Him, making Him His own Father Joh 14:7-9 while saying `the Father is greater than I` Joh 14:28, so it is with us, we can be filled with the HolySpirit and yet have only part of the omnipresent HolySpirit Father in us.
The source point from which He, the HolySpirit, issues is the SpiritRealm (heaven). It is there in which His Majesty is best experienced Heb 1:3 Heb 8:1