The Tradition of Hanging crucifixes in our homes

The altar of the New Covenant is the Lord's Cross, from which the sacraments of the Paschal mystery flow. On the altar, which is the center of the church, the sacrifice of the Cross is made present under sacramental signs. The altar is also the table of the Lord, to which the People of God are invited. In certain Eastern liturgies, the altar is also the symbol of the tomb (Christ truly died and is truly risen).

- Catechism of the Catholic Church, 1182

Christian tradition has long incorporated the use of the cross and, more specifically, the crucifix, in our worship.  Veneration of the cross occurred as early as the 5th century.  The earliest Christians did not use the cross as a symbol of the faith so as not to cause scandal to the weak and to also avoid the ridicule of the cross by non-believers.  When I contemplate the cross, which to Pagans was simply a means of corporal punishment (death penalty), it is easier to understand how shocking it would have been to use the cross as a symbol of Christ.  In the time of crucifixion, the cross would have evoked similar feelings in us as we feel when we see a noose or the electric chair. 

With the passage of time and a lack of experience with crucifixion, the symbol took on it's true Christian meaning (see catechism quote). 

Today, Catholics use the crucifix in the home for various reasons.

1.  The crucifix over our doors represents the blood of the lamb (Jesus) who saves us.  In the time of Moses, the Hebrews were told to cover their door posts with the blood of the Passover lamb and the angel of death would pass over their homes.  By doing this they were saved by the blood of the Passover lamb.  We Christians have been saved by the blood of Christ and our crucifix symbolizes this same "covering in the blood."

2.  The crucifix is the blessing we give each of our guests as they enter our homes.  They are invited into the covenant of our Lord.  The blood of Christ was shed for all and we invite them to call this to mind.

3.  The crucifix is also a symbol of protection so that evil understands that God covers this home with His protection.  We must stay vigilant to the evils that are out in the world.  The crucifix throughout our home reminds us to protect our home by making sure that everything that enters our home is "of the Lord."

4.  Hanging crucifixes over the beds of children also helps remind them of the protection of Jesus while they sleep. 

I enjoy having crosses throughout the home.  Many friends of mine have an entire wall of crosses in their homes.