Truly, night was made for sleep; since to its wakeful hours belongs an oppression unknown to the very dreariest hours of day. The stillness is so deep, the solitude so unbroken, the fever brought on by want of rest so weakens the nerves, that the imagination exercises despotic and unwholesome power, till, if the heart have a fear or a sorrow, up it arises in all the force and terror of gigantic exaggeration.