There are several paths to realizing God, and the path of selfless work is one of them. This book contains eight lectures delivered by Swami Vivekananda on the practical application of the teachings of Vedanta to the affairs of daily life. It demonstrates how it is possible to lead the highest life and ultimately realize the Self without abandoning the duties and avocations of one's life in the world. It shows the readers the technique of converting the mundane activities of everyday life into a means of attaining supreme felicity.