According to Osho, to be pure in heart is the culmination of humility: an egoless innocence, “poverty in spirit” that is empty of greed, anger, ambition, and aggression. When the self is surrendered and the inner space is empty, forgiveness, generosity, and anonymity bloom. Such innocence inherits the kingdom of heaven—losing everything, you gain all.
Purity of heart means dropping your ego and emptying yourself of wants and anger so you become simple, open, and childlike.