Here the word avidya is very significant. Avidya means forgetfulness of ones identity. Every one of us is a spirit soul, but we have forgotten. We think, I am this body. This is called avidya. Samsaya-granthi means doubtfulness. The knot of doubtfulness is tied when the soul identifies with the material world. That knot is also called ahankara, the junction of matter and spirit. By proper knowledge received from the scriptures in disciplic succession and by proper application of that knowledge, one can free himself from this binding combination of matter and spirit. Brahma assures Devahuti that her son will enlighten her, and after enlightening her He will travel all over the world, distributing the system of Sankhya philosophy.