Interpretation:
I believe this is an important verse. We need to teach the world about the heart. This is why God emphasizes the spreading of God’s truth in both the Ofudesaki and Mikagura-uta. God calls this hinokishin in the Mikagura-uta. Just performing the Joyous Service will not bring God’s blessings of new members to our churches. We need to do our part of spreading the teachings, especially about the heart. Song 9 in the Mikagura-uta reinforces the previous statement. It says that here the Service is done, but there is no one who understands the heart. The last part of the song, God is telling us to visit homes to tell people about the heart. Only when the world is given the information to understand the heart, will God begin to help us save the world.
Heaven's Truths, in Healing the Body 