Native American 
To dream of a Native American symbolizes the primitive and wild aspect of your personality. This represents a yearning to break free from cultural and societal barriers.
Northern Lights
To dream of the northern lights symbolizes youth, renewed energy, and vitality. You finally see the big picture about a relationship or situation you are facing.
On the other hand, the northern lights may imply that although you know what you need to do, you may be too afraid or too lazy to make the right move.
Air Conditioner
To dream that the air conditioner is not working indicates that you are anxious and tense. A certain aspect or circumstance in your life has you feeling nervous and apprehensive.
To see or feel the air conditioner in your dream symbolizes release of pressure and stress. You are no longer concerned or upset about a problem or disagreement
Obstacle Course
To dream of an obstacle course may signify that the path you have chosen is not the best one for you. At the very least, you may be making things harder for yourself than is necessary.
To dream of an obstacle course is a gentle reminder to practice acceptance, as resistance can be pointless and painful.
Perpetual Motion
To dream of perpetual motion suggests you are feeling worried and uneasy about a circumstance. You are dissatisfied with predictability and repetitiveness in your daily life, career, and relationships. You want change.