Manomaya Kosha is a concept in yoga philosophy that refers to the mental sheath or layer of the human being, according to the Pancha Kosha (five sheaths) model. It is considered the second outermost layer, surrounding the physical body (Annamaya Kosha), and is associated with the mind, emotions, and sensory perceptions. Manomaya Kosha is where thoughts, feelings, and memories are processed and experienced. This sheath is believed to be made up of the subtle elements of the mind (manas) and is responsible for the functioning of the lower mind. In the practice of yoga, understanding and working with the Manomaya Kosha can lead to a deeper understanding of the mind and its influence on our experiences and behaviors.