BG 15.9

15.9 श्रोत्रम् the ear? चक्षुः the eye? स्पर्शनम् the (organ of) touch? च and? रसनम् the (organ of) taste? घ्राणम् the (organ of) smell? एव even? च and? अधिष्ठाय presiding over? मनः the mind? च and? अयम् this (soul)? विषयान् objects of the senses? उपसेवते enjoys.Commentary Here is a description of how the subtle body remaining in the gross body enjoys the objects of the senses.The individual soul uses the mind along with each sense separately and enjoys or experiences the objects of the senses such as sound? touch? colour (form)? taste and smell.It sits on the marvellous car of its mind? passes through the gateway of the ear in the twinkling of an eye and enjoys the various kinds of music of this world. It holds the reins of the nerves of sensation? enters the domain of touch through the portal of the skin and enjoys the diverse kinds of soft objects. It roams about in the hills of beautiful forms and enjoys them through the windows of his eyes. It enters the cave of taste by the avenue of the tongue and enjoyes dainties? palatable dishes and refreshing beverages. It enters the forest of scents through the door of the nose and enjoys them to its hearts content.It makes its abode in the ears? the eyes? the skin? the tongue and the nose? as also in the mind and enjoys the objects of the senses. It gains experiences of the outer world through the mind?,intellect? subconscious mind? egoism? the ten senses and the five vital airs.Ghranameva cha The word cha (and) indicates that we shall have to include the five organs of action? and also the fourfold inner instrument (mind? intellect? subconscious mind and egoism). In the Katha Upanishad it is said आत्मेन्द्रियमनोयुक्तं भोक्तेत्याहुर्मनीषिणः।।The Self? the senses and the mind united? the wise call the enjoyer.

— vedicscriptures · exposition · source ↗

In other words, if the living entity adulterates his consciousness with the qualities of cats and dogs, in his next life he gets a cat or dog body and enjoys. Consciousness is originally pure, like water. But if we mix water with a certain color, it changes. Similarly, consciousness is pure, for the spirit soul is pure. But consciousness is changed according to the association of the material qualities. Real consciousness is Kṛṣṇa consciousness. When, therefore, one is situated in Kṛṣṇa consciousness, he is in his pure life. But if his consciousness is adulterated by some type of material mentality, in the next life he gets a corresponding body. He does not necessarily get a human body again; he can get the body of a cat, dog, hog, demigod or one of many other forms, for there are 8,400,000 species.

— vedicscriptures · exposition · source ↗