dee,
yes, i have these cards...luv 'em!
i use them for meditation, per the suggestion in the booklets that come with each deck.
i also find that i can confront "old baggage" with them, through a kind of story-building process...
first, i choose cards that represent my feelings about a bad or even traumatic experience (as few as three, as many as twenty!)...then, after i contemplate these images, i choose other cards to depict my recovery, forgiveness and overcoming of the drama or trauma. i may stay with a set of images for several weeks, even months--whatever it takes to work through the scenario, i suppose. eventually, somehow, i have truly found peace over some rather heavy past experiences, just by working with the "soul cards" this way. i say "somehow," because i really can't tell you how or why this works, but it does!
perhaps it is because they are so "deep," as you say--i totally agree! i have often come upon card images that stay with me for quite awhile...
these cards are also great for journaling and creative writing.
i'm glad you found these cards, dee!
good luck!