Experience

If I ask someone about their first memory then many possibilities will come in their mind and they will not be sure which came first and why. Recalling mine earliest memory always fills me with so many doubts often blur incidents appear but the memory which I have gained through my experiences is far superior and memorable than bookish which vanishes as time passes, so experiencing every possiblities of life in all ways, gud-bad, bitter -sweet,dark-light, summer-winter is the real lesson as life is of short span where secrets are revealed in a mysterious way don't know how the path will end with an experiences build around it to define its result. As involving in a task gives us the mastery of subject that determines our focus but what if we loose our focus then diverted mind can never conclude the task. Experience all the dualities, dont be afraid of experience, because the more experience you have,the more mature you become.  If I take a flashback then every minute I lived with love, grace, and gratitude is the happiest time forever  that involves the combinations of thought, perception, memory, emotion, will and imagination, including all unconscious, conscious cognitive processes coming into my way so never cry because it's over always smile because it happened with us, as it gives the test first and the lesson afterwards.  Everything happens for a reason and experience is not what happens to a man, it is what a man does with what happens to him as knowledge.
Basically we say maturity transforms the human character gives a sensibility to make choices wisely and it is a storehouse of experiences so ask the experienced rather than the learned.