Much of the interior design was inspired by the pastor and his resources including early designs by Thomas Gordon Smith (deceased). The 40 Bible of the Poor wood cuts that showcase the life of Christ and Old Testament foreshadowings of Christ are incorporated into a custom wood wainscoting designed by Mr. Heyer. We likewise designed a pinwheel tile pattern in the central aisle tile floor to fit 55 apple tiles (a portion of the 150 apples depicted throughout the Oratory)
Heyer notes the woodworking was executed by Te Deum LLC of Laotta, Indiana.
This particular oratory functions as a chapel for Eucharistic adoration and it contains within it a rather unique rood beam. By way of background, a rood beam (as distinct from a rood screen) is the horizontal beam upon which the "rood" (i.e. cross) stands. Sometimes, a screen is also attached below this beam, thus creating the rood screen which most tend to think of when they hear the term 'rood' but that is not always the case.
The typical -- perhaps we can say "classic" -- arrangement for these involves a crucifixion scene showing Christ crucified upon the cross and often (but not always) we will also see Our Lady and St. John to either side, thereby forming the classic depiction of Golgotha. Sometimes these depictions were more elaborate, however, as for example in this thirteenth century rood that can be found in the Öja Church in Gotland, Sweden. It includes the core elements we mentioned, but around the cross is a circular scene depicting the fall of Adam and Eve and their expulsion from the Garden of Eden :
It is truly meet and just, right and for our salvation, that we should at all times, and in all places, give thanks unto Thee, O holy Lord, Father almighty, everlasting God: Who didst establish the salvation of mankind on the tree of the Cross: that whence death came, thence also life might arise again, and that he, who overcame by the tree, by the tree also might be overcome...
In the case of the oratory of St. Mary Magdalen, we find Christ, crucified on a literal tree, replete with apples, surrounded on either side by Our Lady and St. John, and we can see various texts coming in association with this depiction which help to provide the various layers of meanings intended here.