The living entity is covered by different degrees of lust.
Bhagavad-gita 3.37-39 The living entity in the center is being enveloped by fiery lust. The analogy in verse 38 is illustrated here. At the top is fire covered by smoke, symbolizing human life. At the bottom left is a mirror covered by dust, symbolizing animal life. At the bottom right is an embryo covered by the womb, symbolizing tree and plant life.
