In dreams, being aware of the ground you are walking on in a natural setting suggests a need to ground or earth yourself. It is also a symbol of your true essence and can suggest a need to deal with or face reality, come back down to earth.
If you are walking on clay, for example, this stresses the importance of resilience on your life’s path. The symbolism of grass in dreams may come from its green color, which is a symbol of renewal and revitalizing energy. According to Freudians, grass is a symbol of pubic hair. A dream of lying in the grass may express a simple desire for relaxation or, like other dreams of soft grass, sand, moss or water, a desire to return to the comfort and security of the mother’s womb.
If you were cutting grass in your dream, is there an aspect of your life that needs to be restricted or cut back on? If you were gathering grass to make hay, the dream may be urging you to make the most of a situation in waking life and to seize the day.
See Also: Garden entry in PLACES
A mixture of earth and water, mud is usually associated with the ground that hinders progress and dirties the feet. In many dreams, feelings are intensified as you try to escape from someone or something but cannot move forward because the mud or clay is pulling you back.
[1]