The assumption that the gospel can be reduced to a note card is already off on the wrong track.

In the Bible angels speak and humans speak back to them. This is the case with Mary in Luke 1. The angel speaks, Mary questions, and it goes back and forth. Abraham speaks with angels. So I would contend the Bible has enough evidence of angels speaking and humans speaking that speaking with an angel today would be reasonable. I've heard enough stories and read such that confirm that Christians today do speak with angels.

I've never spoken with an angel, though one time I felt the awesome weight and glory of God's presence in an angel in my bedroom as I kneeled in prayer. I kept my eyes closed, good Baptist that I was at the time, so I never knew if it was an angel. (I now am reasonably confident it was.)

Angels emerge from the presence of God and worship of God, are sent on mission for our redemption, so it doesn't surprise me to read in the Bible of angels leading us into the presence of God in worship.

Love one another strenuously because it's hard.

Our biggest problem is that we have an entire culture shaped by a misunderstanding of the gospel. That so-called gospel is deconstructing the church

Prayer is the way to die to our own wishes and surrender everything to God.