General Meanings:

The filth as a dream symbol traditionally is interpreted as a symbol of luck and prosperity.
When you are pelted with filth or dirty in the dream, then this dream shows that you will have financial matters not only satisfaction, because money is moved through many hands, so it is dirty and this may dirt your inner world.

Psychological Meanings:

The dream of filth may show that your soul, your inner world feels soiled or dirty. Prosperity not always bring joy and satisfaction this also may bring a huge responsibility.

Traditional Meanings:

European (Judeo-Christian)

• Money if see, fall into filth or be pelted with it – The filth as a dream symbol always brings luck and wealth. But it doesn’t matter that this will bring you happiness.

Hindu (Hinduism)

• Luck if see filth – The filth in the dream announces unexpected good fortune which will come to you.

Arabian (Islamic)

• Welfare if fall into filth –  You will become wealthy if you fell into filth in the dream.