Let me just chime in here. I participated (“lived”) my ACTS retreat in 2013. At that time, I had been to about a dozen or more retreats in my lifetime and assumed this would be more of the same (after attending a number of retreats, you begin to identify a “formula” that they all have in common). Because of this, I had no “suspicions” about it’s “secrecy” or any concerns about “surprises” because all retreats have all of these to some degree.
I will tell you, this is a retreat that aims right for your heart and not so much your head (intellect). I MUCH prefer the intellectual/theological retreats, so this was NOT going to be my liking. BUT, it was EXACTLY what I needed. One’s faith (especially for us men) does not stop below the neck. If you are afraid of being touched in the heart, rather than the head, then yes, you will be uncomfortable. But this is how you grow. I now volunteer for the ACTS ministry which surprises me to no end as I would have NEVER willingly volunteered for this ministry based on my own likes, talents, and yes, fears.
Go on the ACTS retreat. Grow in you faith and spirituality. You will be challenged; but as far as I know, no one has died on one of these retreats. As Pope St. John Paul II said, “be not afraid.” If it’s “not for you” then you’ve really lost nothing. If it does touch you, then you’ve gained everything.