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.

128. "'And charity and ministry.'" This symbolizes the spiritual affection called charity, and the practice of it.

Charity is a spiritual affection because charity is love for the neighbor, and a love for the neighbor is that affection.

Ministry is the practice of it, because in the Word those are called ministers who put into practice things that are matters of charity.

In the Word, a worshiper of God is called sometimes a servant, sometimes a minister; and a servant of God is the term used for one who is governed by truths, and a minister of God for one who is governed by goods. The reason is that truth serves good, and good ministers to truth. That servant is a term used for someone governed by truths, see no. 3 above. That minister, on the other hand, is a term used for someone governed by good is apparent from the following passages:

You shall be named the priests of Jehovah, ...the ministers of our God. (Isaiah 61:6)

...My covenant will also be broken... with the Levites..., My ministers. (Jeremiah 33:21)

They are called ministers because priests represented the Lord in relation to Divine good.

Bless Jehovah, all you His hosts, His ministers who do His will. (Psalms 103:21)

(Jehovah) makes His angels spirits, His ministers a flame of fire. (Psalms 104:4)

Angel spirits are ones who are governed by truths, and angel ministers are ones who are governed by goods. A flame of fire also symbolizes the goodness of love.

(Jesus said,) "whoever desires to become great..., let him be your minister. And whoever desires to be first..., let him be your servant." (Matthew 20:26-27, cf. 23:11-12)

"Minister" there refers to good, and "servant" to truth.

Ministering and ministry have the same symbolic meaning in Isaiah 56:6, John 12:26, Luke 12:37, and elsewhere.

It is apparent from this that charity and ministry symbolize the spiritual affection called charity and the practice of it. For good is connected with charity, and truth with faith.