Orchestra
To dream that you are in an orchestra represents inner integration, resolution, and harmony. You need to incorporate various aspects of your life. Alternatively, an orchestra refers to your desires to fit in and be accepted by society.
Obstacle Course
To dream that you are going through an obstacle course symbolises the hardships and difficulties that you are experiencing in your waking life. It represents the things that you must overcome in order to reach your goals. The elements in the obstacle course is analogous to the barriers and problems in your life.
Obligation
To dream that someone is obligated to you indicates that you are ready to achieve a new level of success.
Obese
To dream that you are obese denotes overindulgence. You feel helplessness in expressing your power and authority. By dreaming that you are obese, you are trying to insulate yourself from your surroundings and protect yourself from involvement in the situation. Alternatively, the dream may just be a reflection of your waking weight or dieting issues. You have an skewed perception of your own image which may stem from low self-esteem.
Opposite Sex
To dream that you are the opposite sex suggests that you need to incorporate certain qualities of the opposite sex. Ask yourself, how do you feel being a man or a woman? In what ways can you incorporate those feelings into your waking life.