The grand festival of Holi is connected with many incidents from the Scriptures.
Hiranyakasipu asked his sister Holika to take Prahlada in her lap and enter a huge ball of fire. As Holika had the boon that she would not be burnt by fire, Hiranyakasipu tried to kill his son Prahlada through her . But by divine intervention it did not work and Prahlada was saved while Holika died. In remembrance of this Holika dahan (burning of Holika) is done .
Krishna applied various colours on Radha and other Gopis and all of them enjoyed in exalted ecstasy.
Ogress Putana was killed by Krishna on this day.
This day is also in relation to the episode of Kamadeva being burnt by Siva while the former attempted to disturb his meditation.
Ogress Dhundhi gave a lot of trouble to children in the kingdom of Raghu . The Children drove her away by their pranks on this day. Even today Children play many pranks and fling abuses during Holika dahan.
Holi represents joyful play with colours and waters.
Let us remember the delightful plays of Radha and Krishna on this auspicious day.जय जय श्रीराधे