Scripture uses all sorts of illustrations to teach us what it means to belong to God. Peter writes that we are a spiritual house. There are usually several rooms in a house. Even the smallest of homes with only one open living space have designated areas, i.e. the sleeping area, the cooking area.
As Spiritual house we each have our function. We may be an encourager, a person who dedicates much time praying for others, or a giver of finances. We need to fellowship with one another, talk to each other, spend time with others in the house so that we know what the needs are, share in the sorrow, and join in the celebrations.
We may not share intimately with every person in the house, but we should be sharing with someone else who lives there.