i just finished wilderness time: a guide for spiritual retreat by emilie griffin. i started it for our sabbath retreat but i really only read the parts that dealt with groups so that i could focus on other books that lent more to the sabbath retreat itself. since the retreat i’ve finished the book. it was quite good. it is definitely about personal spiritual retreats but it did have some good suggestions that helped formulate the sabbath. i’m going to use some of it’s suggestions for my personal sabbath retreat. the best part about the book is actually an appendix that has outlines for 1 day, 3 day, and 7 days spiritual retreats. it’s a very good basic plan to an organized spiritual retreat.