Gravel consists of small particles that can be difficult to walk on or that can cause machinery to malfunction, so gravel in a dream can represent small annoyances that are preventing you from getting on with your life.
If you dream that you are walking on gravel, it can mean that you should not let petty matters bother you if you want to move forward and achieve your goals.
A dream that walking on gravel causes you to skid and lose your balance can be a sign that you are worried about taking risks.
Being scratched by gravel in a dream can mean that you may be causing yourself harm by neglecting something that you believe to be unimportant.
Sometimes playgrounds are covered in gravel, so gravel in a dream can represent a desire to go back to your childhood – to relieve yourself of the responsibilities that come with being an adult.