The mark worn on the forehead. This should be made of earth from mountains or Shiva temples or snake pits or the soil under the tulsi plant. Depending on the kind of soil, the effects vary. Black provides peace, red is for enticing, yellow gives prosperity and white stands for dharma. The width of the finger using which it is applied also affects the results. Using the thumb provides health, the middle finger gives longevity to life, the ring finger gives food and the little finger gives mukti. The design can also vary. Where it is placed also decides what name of Vishnu should be chanted as per Devibhagavata Ekadashaskanda.