Rashi explains that the word “burden” indicates the blasphemous non-believers among the populace. Rabbi Nachman of Breslev Zt”l gives us to understand that one who does not believe in Hashem carries a mighty burden. The various questions for which he either does not seek, or will not accept any answer are burdensome, encumbering him wherever he may turn. The refusal to face certain realities because of foolish misgivings deprives a person of the sublime serenity which exists within those who truly believe in Hashem. Life with its various hardships is much easier for them to face. The various questions which confront the non-believer do not exist, since for the believer there are no questions, while, for the non-believer there are no answers.