The Holi festival is associated with the great devotee Prahlad. He was in the midst of the most gruesome situation we could imagine. But he was undisturbed and always blissful. This is because he revived his eternal relationship with the Supreme Lord through Bhakti Yog. He is always experiencing the unlimited love of Lord Narsimhadev. This loving relationship can alone bestow everlasting satisfaction and joy as stated in Bhagwad Gita 6.22.