The piebald cow or a cow blotched with white and black in a dream means the same, though the latter also represents firmness when seen in the middle of the year.... If one sees himself riding a black cow, or if a cow enters his house, where he ties her to a pole in his dream , it means money, good business and dispelling of his anxiety, sadness, loneliness or distress.... A black or a yellow cow represents happiness, prosperity and a good harvest....