Moshiach embodies the three dimensions of Torah — refining the mind through divine wisdom, revealing the soul’s inner glory, and sanctifying the body by eradicating lust and evil.

The idea is that “this physical world” has various levels, including a dimension which cannot (presently) be discerned.

The king will no longer merely be the guardian of justice in a morally compromised world. He will become the ultimate conduit through which the sovereignty of G-d is revealed to the entire nation.