Most of us agree that there is a part of us that will continue for eternity after our bodies cease to function. In the Ofudesaki, God calls this the mune or heart that we do not understand (verse 1-1). I have drawn a diagram showing what the heart does for each of us.
(1)
The heart collects our demerits (negative energies) that were created by acting on our dusts or evil thoughts. These thoughts as mentioned in the Ofudesaki are regret, covetousness, self-love, greed, and arrogance. Verse 3-11 tells us that the heart is the sand that collects the demerits that were created by acting upon the dusts in the mind.
(2)&(3)
The heart releases these demerits as our fate, in the form of illness or inconveniences to our own bodies. In the Ofudesaki, there are many verses that have the words “from what comes from the innermost heart”, or “mune no uchi yori”. God tells us to ponder what comes from our hearts (verse 3-47). Our fates come from the heart. In the Ofudesaki, and the Mikagura-uta, God tells us that illness comes from our own minds. By looking at the diagram, one can see that the origin of illness does come from the mind.
(4)
When we die, our souls collect the dusts in our minds. Remember God tells us that our minds are ours to use, while our bodies are borrowed from God. God will not interfere with our thoughts, and it is up to us to eliminate our evil thoughts. We take our dusts to our next lives. The diagram does not show it, but when our hearts enter our next incarnation, these dusts will be distributed to the mind, restoring our previous proportion of dusts in the mind.
I have attempted to describe the function of the heart; but I have not described how to purify our minds and our hearts. This information is all in the Ofudesaki, and in the future, I will attempt to describe and use diagrams in doing this
Heaven's Truths, in Healing the Body 