I was just impressed with the awesome wonder of the coming of the Holy Spirit. My father came from a sect of Russian pacifists, the Doukhobors, and as one of their practices they would bow to one another in recognition of the Holy Spirit in one another. That may be a bit over the top, but I like the idea. It is amazing to think that the Holy Spirit has come and is dwelling in the saints. Maybe we could just look at John 14 in this connection.
Then, thinking of the many effects of the Holy Spirit, here are two: sin is reproved, and Christ is exalted. And we get that in Acts 2.
The Incarnation of Christ is an awesome and wondrous fact, and a reality that we can never get enough of. But the coming of the Spirit is so wonderful, powerful, and has such implications, that I just felt, myself, the need to be expanded in the awesome wonder of His coming. So we have Christ here physically – and you can see Him, but only those who have faith really discern Who He is. Then we have the Spirit, and He is not seen – as it comes out in this section in John 14, we cannot see Him.