Marks the start of spring season. Lord Krishna complained to his mother about his dark color while Radha was fair. His mother asked Krishna to color Radha making her one like himself. Krishna used pichkari of colored water on Radha & thus they got bonded. Scientifically, natural colors are essential for body to enhance health and beauty. Lack of color element causes deficiency. Music and dhol is used during holi to remove body's tardiness associated with the transition of winter to spring.