Without the light of knowledge we are all blind.The night of ignorance is encircling us.It is neccessary that we have to travell to our original house that is the residence of god.In the middle of the travell we have the light that is given by god himself.But we have not lightened this with the light of devotion.If the light of devotion as per the direction of the lord,is lightened all the obstacles in the path of reaching god will be cleared.