This is a powerful lecture delivered by Swami Vivekananda in San Francisco in 1900.It is one of the best books delineating, in brief, the fundamentals of Vedanta in a lucid, authoritative and candid tone.
The human soul has sojourned in lower and higher forms, migrating from one to another according to the samskaras or impressions, but it is only in the highest form as a human being that it attains to freedom.
-Swami Vivekananda