Whatever Vidya (knowledge) we study and understand with our intellect is limited. What we get through silence and meditation is Mahavidya (greater knowledge).
The knowledge that we gain by effort is Apara Vidya. And the one which is gained through effortlessness, through silence and intuition is Mahavidya.
When Avidya (ignorance) is dispelled, you get Mahavidya. Also you dispel Avidya using Mahavidya. Both these things are there.