The following poem reminds me of the my dear Guru Nanak's poem "Hukam Rajai"
"Hukam rajai" assumes that Ekonkar is sovereign and we do not have much control. So a lot of the things we do to attain peace/freedom/happiness are useless. The only action that makes sense is "Hukam Rajai" -- surrendering to the will to the ruler of our destiny. Surrendering is nothing but loving. And singing is the expression of love! So, the purpose of life remains to sing!
Since all that is was ever bound to be; Since grim, eternal laws our Being bind; And both the riddle and the answer find, And both the carnage and the calm decree; Since plain within the Book of Destiny Is written all the journey of mankind Inexorably to the end, since blind And mortal puppets playing parts are we: Then let’s have faith; good cometh out of ill; The power that shaped the strife shall end the strife; Then let’s bow down before the Unknown Will; Fight on, believing all is well with life; Seeing within the worst of War’s red rage The gleam, the glory of the Golden Age.