"The Secret Doctrine, Vol. 1 of 4" by H. P. Blavatsky is a two-volume esoteric work published in 1888. This influential text attempts to reconcile ancient Eastern wisdom with modern science, presenting a cosmology based on Hindu cyclical development. Volume One explores the origin and evolution of the universe through periods of activity and passivity spanning millions of years. Volume Two traces humanity's origins through "Root Races" dating back eons, describing civilizations on lost continents like Lemuria and Atlantis while challenging Darwinian evolution.