What they saw was a man who was completely unselfconscious, totally absorbed in the moment, singing and praying openheartedly and showing every sign of existing in a state of real connection with the mysterious spirits everyone present was supposed to be connecting with.
Source: wiktionary
To reveal her willingness to assist him in his efforts, she openheartedly added, "I'll be there for you, Dwight, in whatever way I can."
Source: wiktionary
A truly open dialogue, in which one openheartedly considers the beliefs of another, can only result in the mutual destruction of these beliefs, which is not necessarily a bad thing as they are the cause of so much trouble.
Source: wiktionary