This dream may symbolize feelings of betrayal and fear in your waking life. The big table represents a gathering or meeting, possibly with people you know. Sitting at the last end of the table may suggest a feeling of being left out or excluded from the group. The man with the gun could represent a threat or danger in your life. The fact that he starts shooting people from the other end of the table and works his way towards you may indicate a sense of impending danger or harm. This could be a reflection of your fears and anxieties about a situation or person in your life. The sudden awakening as the gun reaches you may suggest a need to confront and address these fears before they consume you. It may also be a reminder to be cautious and aware of potential threats in your waking life.