PSYCHOLOGY OF EMOTIONS

Detailed explanation-1: -Around 108 Upanishads are known, of which the first dozen or so are the oldest and most important and are referred to as the principal or main (mukhya) Upanishads.

Detailed explanation-2: -There are over 200 Upanishads but the traditional number is 108. Of them, only 10 are the principal Upanishads: Isha, Kena, Katha, Prashan, Mundaka, Mandukya, Tattiriya, Aitareya, Chhandogya and Brihadaranyaka.

Detailed explanation-3: -The 108 Upanishads is a thoroughly researched primer on the Upanishads, philosophical treatises that form a part of the Vedas, the revered Hindu texts.

Detailed explanation-4: -Katha, Kena, Isa, Mundaka, Prasna, Taittiriya, Chhandogya, Brihadaranyaka, Mandukya, Aitareya, Kaushitaki, Svetasvatara, and Maitrayani are the 14 most well-known or important Upanishads.