There are three degrees of covering of the living entity by which his pure consciousness is obscured. This covering is but lust under different manifestations like smoke in the fire, dust on the mirror, and the womb about the embryo. When lust is compared to smoke, it is understood that the fire of the living spark can be a little perceived. In other words, when the living entity exhibits his Krishna consciousness slightly, he may be likened to the fire covered by smoke. Although fire is necessary where there is smoke, there is no overt manifestation of fire in the early stage. This stage is like the beginning of Krishna consciousness. The dust on the mirror refers to a cleansing process of the mirror of the mind by so many spiritual methods. The best process is to chant the holy names of the Lord. The embryo covered by the womb is an analogy illustrating a helpless position, for the child in the womb is so helpless that he cannot even move. This stage of living condition can be compared to that of the trees. The trees are also living entities, but they have been put in such a condition of life by such a great exhibition of lust that they are almost void of all consciousness
The entanglement of this material world is compared here to a banyan tree. For one who is engaged in fruitive activities, there is no end to the banyan tree. He wanders from one branch to another, to another, to another. The tree of this material world has no end, and for one who is attached to this tree, there is no possibility of liberation. The Vedic hymns, meant for elevating oneself, are called the leaves of this tree. This tree’s roots grow upward because they begin from where Brahma is located, the topmost planet of this universe. If one can understand this indestructible tree of illusion, then one can get out of it.