The beloved sought and found is the higher self, the inner Christ-nature that the soul recognizes only after passing beyond the watchmen of the ordinary mind. A little farther than the guarding thoughts, in the stillness just past the usual patrol, the deeper self and its source meet and will not be parted. Holding and not letting go is the fixing of attention, the refusal to lose the light once it is felt, until the union is carried home.
The mother's house and the chamber of conception are the deep interior of a person, the creative womb below thought where life first formed. To bring the beloved there is to unite the seeking soul with its origin in the very place it was made, so that the spark returns to the ground it came from and the 2 are one at the root.
Beloved whom the soul loves: the higher self, the inner divine nature the soul seeks and recognizes
Mother's house: the deep creative interior of a person, the ground below thought where life originates
Chamber of her that conceived: the innermost womb of consciousness, the place of first forming, where union is completed