Work and Its Secret is based on the speech by Swami Vivekananda in Los Angeles, California on January 4th, 1900.
In it, Swamiji talks about giving equal importance to both the means and the end while doing work.
He emphasises that the major reason for failure is lack of attention while doing work.
Swamiji draws upon the lessons of the Bhagavad Gita to emphasise this point.