A snake, being the ages old symbol of evil or satan, makes it a bad omen to have one show up in a dream. To see a lone snake and feel threatened by it shows that you have a bad enemy that is even then working against you, it also a warning against bodily harm from an enemy. To dream of many snakes in a pit is the foreboding of much bad luck in love or business. Should you overcome and kill a threatening snake in your dream shows that you will overcome your adversary and win out.