Left
To dream of the left represents logic, reason, intelligence, truth, following the rules, order, self-control. Left can also represent positivity.
To dream of standing on the left facing the right represents an observation of a situation where you are aware of yourself having a logical, reasonable, or intelligently correct view of a situation. Awareness or surprise that you are correct about a situation. Feeling that someone else has a less intelligent idea than you do. Confronting someone who more creative or unpredictable thna you are.
The left or right sides in a dream are often one of the most revealing symbols in a dream giving you insight into how truthful or logical some aspect of your thinking is.