Left

Being left behind in your dream signifies your emotions about being neglected. You may feel that you are not good enough but if you truly are not good enough then find something where you could utilize your abilities better. If you let go of something or someone then it represents your move forward and letting go of the past.

Turning to the left during a dream can symbolize the path of foolishness, Eccl. 10:2

The idea of the left side of anything in a dream will have associations with something that has not been tried before or something different than what you normally do. Since the 'right' is the accepted path, going 'left' shows a new way or new approach 'the road not taken.' See also Arriving and Leaving and Placement and Perspective.