The world is not an impediment, it is your ignorance (of the Self) that impedes you. When does ignorance (of the Self) leave? It leaves through the Knowledge of the Self (Gnan) that the Gnani Purush gives. What should the Knowledge of the Gnani Purush be like? It should be science (Vignan). Vignan is animate (chetan), whereas knowledge is inanimate (achetan). The knowledge that is prevailing in the world is achetan. Achetan means that it cannot work on its own from within (kriyakari) whereas this (Knowledge of the Self) is science. Science constantly keeps working on its own, You do not have to do anything.