Holi Special: Why do we celebrate Holi with colours?

As Summer begins, India awaits the arrival of Holi. The festival of colours is celebrated every year with much pomp and show and is filled with excitement. This colourful festival is celebrated in every corner of the country with equal enthusiasm and in unique ways to mark the beginning of spring. But do you know, why do we celebrate Holi with colours? And why do we drink Bhang on Holi? Ace astrologer Y Rakhi has all your answers.