Something foundational about the Holy Spirit

This is such a foundational thing to learn and know (especially when you've experienced regeneration by the word and the Spirit, and also if you have experience working with higher influence - C Influence - or, conscious influence): J. I. Packer writes (in his article on the Holy Spirit in the New Dictionary of Theology):

"John reports Jesus as saying that the Spirit's second-paraclete task is to mediate knowledge of, and union and communion with, the physically withdrawn, ascended, and glorified saviour [emphasis mine] (see Jn. 14:15-26; 16:14). Less explicitly Christocentric statements about the Spirit elsewhere in the NT should be understood as reooted in this understanding [as well]..."

Paraclete is sometimes translated as comforter or advocate. Jesus was the first paraclete, the Holy Spirit he sent after his resurrection is the second.

Anyway, this is how you are 'in Christ' and Christ is 'in you' -- when the Holy Spirit comes into you. And the Spirit wars with the flesh, out of which battle sanctification develops. The connection to work practice (two conscious shocks) is, of course, there...