The difference being that while we may have the Holy Spirit (a spirit mind you), indwelling in us, Jesus Christ was not just a spirit — He was God AND Man — both wrapped up in one.
so he is God and we are man, both wrapped up in one. That being said— we are not Christ, tho we have His Spirit. We are a resting place, like the ark was, but as He is inside now, we are the tabernacle.