A mind that not only hears the truth but lives it has set its peace on ground that nothing outside can reach. The digging deep is the willingness to look past the surface of appearances to the changeless place where the mind rests in love, and a peace built there does not depend on the world staying calm.
So when fear rises like a flood, throwing loss and grievance against that mind, it finds nothing to shake, because the mind's foundation was never in the world's opinion of it. What stands untouched is the recognition that its safety was placed in what cannot be moved, and the storm passes over ground it could not claim.
House: the mind's sense of itself, the dwelling of peace it builds on one foundation or another.
Rock: the changeless truth of love, the unshakable ground on which a mind founds its peace when it lives what it hears.
Flood: the surge of fear and grievance the world throws against the mind, powerless where peace is built on truth.
Stream: the current of attack thoughts that beats upon the mind, unable to move what does not rest in appearances.