The left side suggests the less dominant, more passive side. Often it is taken to represent all that is dark and sinister and those parts of our personality that we try to suppress.
It is, however, more to do with instinctive behaviour, what feels good inside, and with personal behaviour without attention to moral codes.
The left side is supportive in expression, and receptive by nature, so anything appearing in dreams on the left side can be accepted as a symbol of support.
Any pain experienced on the left side is interpreted in terms of sensitivity.
The left expresses the more feminine attributes and often the past.
Any conflict between right and left indicates the differences between logic and intuition.
Indecision over left or right suggests an inability to decide whether to rely on drive or instinct. Feelings of being left behind suggest a sense of inadequacy, of disintegration and of having to leave the past behind.