Down to eanh; reality; the physical experience; stability; the materialising of an idea, feeling or plan. Leonardo da Vinci’s diagram of the man in the circle within the square represents a complete balance of the vanous aspects of human nature—as he may have achieved himself. See mandala above in this entry. ... A Guide to Dreams and Sleep Experiences
A symbol of wholeness. You are on the path of individuation and self-awareness. You are grounded and emotionally balanced.
The idea of being grounded was particularly emphasized by Plato, who considered the square the original symbol of Earth, since the angles of the square are an expression of permanence, in the sense of its structural shape.... Little Giant Encyclopedia
Anything square appearing in a dream may comment on the importance of structure. It may represent fixed or concrete ideas. It may also represent the four comers or directions as bringing form to your ideas.
A square denotes rigidity.... Ariadne's Book of Dream
Dreams of a square are a sign to develop more balance, equanimity, order and organization in your lifestyle. Alternatively, this dream could be giving you the message to think outside of the box, and to stop being so square. Consider the feeling tone of this dream. See Box.... Strangest Dream Explanations