Holy Water.. Incense.. and other stage props in the drama..
Like that..
Family life isn't "scriptural" either. That doesn't mean the Church disparages it.
The "stage props" to which you refer are designed to put a person in mind of the mysteries of God, to prepare a person emotionally for contemplation of our Lord. As such they are adjuncts to, not replacements for, the Holy Scriptures. They conduce to a more vivid sense of the Holy.