To dream of a mushroom represents concern that you are making a bad choice. Preoccupation with how dangerous something you want to do might be. A lack of confidence with something you feel you are risking. Asking yourself “is this good for me or not?” Struggling with values or morality. The prospect of making a dangerous choice you don’t feel good risking.
Example: A woman dreamed of a mushroom growing out of her foot. In waking life she had decided to make a change with the location of her sales booth at a market to see if it would make her more money. The mushroom reflected the concern that her choice may end up making things worse.
Example 2: A woman dreamed of seeing her dead grandmother’s body covered in mushrooms. In waking life she was very close to her grandmother and was now struggling to sort out her values from her grandmother’s. The mushrooms in the dream may have reflected her feelings about her moral or life choices not being good ones now that her grandmother wasn’t around to advise her.