The function of a trailer is to allow such a home to be mobile and easily moved from one place to another. This movement is symbolic of change and transformation such that the essential self as represented by the trailer is unchanged. Such an image in a dream might indicate that outside circumstances are shifting in your life and there is a desire to maintain a connection to your essential self as you allow those changes to unfold. [1]
If riding in one, you are not in control of your life direction.
See also: Passenger.
If living in a mobile home, see House. [4]
2. Family; [5]