3 definitions
Definition.com
The Inner man (n.) is a stone cut from the mountain without hands — a small stone that becomes a great mountain.
Definition.com
The Kingdom of Heaven (n.) is to be sought within man — even in children of seven years.
Definition.com
The Kingdom of Heaven (n.) lies within us like the wine in the cup — which is why each disciple must eat Christ's flesh "to come to his own special nature."