I told him my conundrum: Many people of achievement suffer as they age, because they lose their abilities, gained over many years of hard work. Is this suffering inescapable, like a cosmic joke on the proud? Or is there a loophole somewhere—a way around the suffering?Acharya answered elliptically, explaining an ancient Hindu teaching about the stages of life, or ashramas. The first is Brahmacharya, the period of youth and young adulthood dedicated to learning. The second is Grihastha, when a person builds a career, accumulates wealth, and creates a family. In this second stage, the philosophers find one of life’s most common traps: People become attached to earthly rewards—money, power, sex, prestige—and thus try to make this stage last a lifetime.The antidote to these worldly temptations is Vanaprastha, the third ashrama, whose name comes from two Sanskrit words meaning “retiring” and “into the forest.” This is the stage, usually starting around age 50, in which we purposefully focus less on professional ambition, and become more and more devoted to spirituality, service, and wisdom. This doesn’t mean that you need to stop working when you turn 50—something few people can afford to do—only that your life goals should adjust.Vanaprastha is a time for study and training for the last stage of life, Sannyasa, which should be totally dedicated to the fruits of enlightenment. In times past, some Hindu men would leave their family in old age, take holy vows, and spend the rest of their life at the feet of masters, praying and studying. Even if sitting in a cave at age 75 isn’t your ambition, the point should still be clear: As we age, we should resist the conventional lures of success in order to focus on more transcendentally important things.
More at the source, which is worth reading (and I think the embedded graphic is brilliant).