~Tulku Urgyen Rinpoche
Is there any place where earth, water, fire and wind can go that is outside space? Don't they always remain within space? When they disintegrate, isn't it within space that they dissolve? Is there any place at all to go to which is beyond or outside space, which is somewhere other than space?
Please understand very well this symbolic resemblance between dharmadhatu and physical space. The relationship between dharmadhatu, dharmakaya and dharmadhatu wisdom is like the relationship between a place, a person and the person's mind. If there is no place, there is no environment for the person to exist in; and there is no person unless that person also has a mind dwelling in the body. In the same' way, the main field or realm called dharmadhatu has the nature of dharmakaya. Dharmakaya has the quality of dharmadhatu wisdom, which is like the mind aspect.