Tough times

Just saw an offer for a discount on a book to encourage staying sober through difficult times. Major stuff like death in family, sickness, divorce, etc. Something clicked in my head that I should buy it and put it on the shelf until I need that encouragement. Why would I be so convinced? Couldn't hurt to have it handy I suppose. Reading helps keep me straight I've noticed, but I specifically feel I just need to have it on the shelf. IDK