It makes sense that Jesus would say it's to our advantage to have this "other counselor." After all, Jesus merely walked beside the disciples; the Spirit would actually enter their human bodies (John 14:17). You've probably heard this truth a hundred times, but have you marveled at it? Would you be willing to take thirty seconds right now just to dwell on the fact that God is in you?
Astonished? This is not a distant, loose connection. This is the Spirit of God choosing you and me to be His dwelling place. That means that as I write, the Spirit of the living God is inside me. I might wake upon a particular day feeling tired or stressed or impatient, and humanly speaking, those things would probably define my day. But the reality is that I am indwelt by the Holy Spirit. And because of this reality, stress and tiredness and impatience don't have to define my day.p. 110