And the third of these classics, the Bhagavad Gita, gives us a map and guidebook. It gives a systematic overview of the territory, shows various approaches to the summit with their benefits and pitfalls, offers recommendations, tells us what to pack and what to leave behind. More than either of the others, it gives the sense of a personal guide. It asks and answers the questions that you or I might ask – questions not about philosophy or mysticism, but about how to live effectively in a world of challenge and change.