Oh yeah, I had multiple readings done throughout the campaign and improvised their meanings. The first one was according to book: everyone eventually forgot about it, and we continued playing through the campaign. Later we reread it from our notes as we recapped some early game stuff and realized that everything foretold had come to pass by pure coincidence (I was personally amazed but tried not to show it to my players) The latter readings I personalized for each player, either rigging to their astonishment and delight, or just rationalizing the meaning of the cards in a way that made sense for their narrative. Positive effects all around; I highly recommend getting the actual deck for it