TJust as a cup of water from the ocean shares all the characteristics of the ocean but is distinctly unusual from it in size and potentiality, so is the atman connected to the Brahman. 

In Hinduism, Atman and manas (mind) are two distinct concepts. Atman refers to the individual self or soul, which is believed to be identical with the ultimate reality or Brahman. Manas, on the other hand, refers to the mind, which is a part of the individual self and is responsible for thought, perception, and emotion.

While Atman is considered eternal and unchanging, manas is constantly changing and can be influenced by external factors such as sensory input and emotions. Atman is believed to be the ultimate source of consciousness and the self, while manas is seen as a temporary aspect of the individual self.

The Self is described by consciousness. The Self is naturally immortal, having no beginning and no end to its entity. It is atomic in size and undergoes ‘embodiment’ which implies that it takes birth in the bodies of plants, animals, humans, or gods. In the embodied state the atman is technically suggested as “jiva”. In an epitome, the natural attributive consciousness has become obscured and covered by thoughtlessness and illusion. The jiva wrongly specifies itself with the physical body /mind complex and this is the source of all sorrow and delusion. All sentient entities are basically non‐different from each other in their Essence of Nature. In the embodied state the disparity between them is the extent of ignorance predominating. Animals are in a greater mode of ignorance than human beings.