This book deals with the dynamic inner faculties inherent in man, though more or less dormant or undeveloped. Two types of latent powers are distinguished: those that have not yet evolved or may not even be suspected, such as clairvoyance, telepathy, and other occult powers; and those that we already possess but use most often in a quite rudimentary form, such as the powers of thought, imagination, will, concentration, and intuition. These selections from the writings of Sri Aurobindo and the Mother throw light on the nature of these "powers within" so that we may learn to use them more consciously, deliberately, and beneficially.