I think using the books would be great to do as a group. However, because this relationship is so personal it might be more fun to do with close friends, or as a small group. Each day in the Journey Guide is about your experience.
If you’d like to use it in a group setting I would suggest reading the chapter and talking about it together. Then anyone who wants to can share about their individual time with Jesus.
I worked through it with a best friend because I wanted to see how it worked, but also because it was going to be fun to do! My friend and I would meet and talk about our times with Jesus. Some were too personal but others were so cool or funny we had to share. We both grew, not only in our relationship with Jesus but in our friendship.
I think hearing about other’s experiences with Jesus spurs us on to wanting more, and also shows us ways to get out of our box. It’s amazing how doing the exercises showed me things I wouldn’t have expected about myself. For example, one prompt is to imagine that you’re under water, just floating and enjoying the feel of it, and I found that I was very uncomfortable doing that. I don’t like being under water, even with Jesus!