They can have a positive meaning, they portend the end of our worries.
They can also indicate low self-esteem, a widespread sense of inferiority.
If you dream of excrement on the bed, then the excrement heralds an impending divorce.
Dreaming of getting dirty clothes or hands with excrement – the positive meaning of the dream is accentuated:
Dreaming of stepping on excrement or shit – arrival of money