A "house" is essentially a container -- for a person, a family, several families or even a large group with shared interests (think of the term "houses of worship.") In the Bible, a "house" is also a container, but for spiritual things rather than natural things. In various uses a "house" can represent part of the mind, the whole mind, a whole person or even a church. The other nuance to the word "house" is that it is generally used in regards to our affections and desires rather than our thoughts and principles. This makes sense; we tend to engage our thoughts and rationality when we are out in the world doing our work, but when we are inside our houses we are driven most by love for our families and the desire to be good to those we love. So "house" tends to represent the things we want and care about -- which are ultimately the things that define us.

276. THE STATE OF INNOCENCE OF ANGELS IN HEAVEN.

What innocence is and its nature few in the world know, and those who are in evil know nothing about it. It is, indeed, visible to the eyes, as seen in the face, speech and movements, particularly of children; and yet what innocence is, and especially that it is that in which heaven is stored up in man is unknown. In making this known let us proceed in order, and consider first the innocence of childhood, then the innocence of wisdom, and lastly the state of heaven in regard to innocence.