keep the architecture lighting and stained glass illumination exactly as shown add polished wooden pews arranged symmetrically along the nave axis all facing the altar place a marble altar and ambo at the front consistent with contemporary roman catholic liturgical design add a crucifix with jesus on the cross positioned at the altar wall or suspended above the altar scaled appropriately to the space and illuminated by the stained glass glow populate the pews with worshipers seated and standing oriented toward the altar add a choir in the upper balcony levels with natural variety but do not change any architectural geometry maintain the bright heavenly light and sacred atmosphere
