The harmony and symmetry of the heavenly order can be expressed numerically. For example, because of the seven days of creation in Genesis there are seven days in the week (corresponding also to a half phase of the idealised lunar cycle). The Sunday mass is the summit of the weekly cycle. In the weekly cycle there is in addition day, the so-called eighth ‘day’ of creation, which symbolises the new order ushered in by the incarnation, passion, death and resurrection of Christ. Sunday the day of his resurrection, is simultaneously the eighth and first day of the week (source and summit). Eight, expressed as ‘7 + 1’ is a strong governing factor in the Church’s earthly liturgy. (It is why baptismal fonts and baptistries are constructed in an octagonal shape and why you might have octagonal patterns on a sanctuary floors.)
Without Christ, the passage of time could be represented by a self enclosed weekly cycle sitting in a plane. The eighth day represents a vector shift at 90° to the plane of the circle that operates in combination with the first day of the new week. The result can be thought of as a helix. For every seven steps in the horizontal plane, there is one in the vertical. It demonstrates in earthly terms that a new dimension is accessed through each cycle of our participation temporal liturgical seven-day week.
The 7+1 form operates in the daily cycle of prayer in the Divine Office too. Quoting Psalm 118, St Benedict incorporates into his monastic rule the seven daily Offices of Lauds, Prime, Tierce, Sext, None, Vespers, and Compline; plus an eighth, the night or early-morning Office, Matins.
Prime has since been abolished in the Roman Rite, but usually the 7+1 repetition is maintained by having daily Mass (not common in St Benedict’s time). Eight appears in the liturgy also in the octaves, the eight-day observances, for example of Easter. Easter is the event that causes the equivalent vector shift, much magnified, in the annual cycle. The Easter Octave is eight solemnities – eight consecutive eighth days that starts with Easter Sunday and finishes the following Sunday.
These three helical paths run concurrently, the daily helix sitting on the broader weekly helix which sits on the yet broader annual helix. We are riding on a roller coaster triple corkscrewing its way to heaven. This, however, is a roller coaster that engenders peace.
For more detailed discussion of Christian cosmology and number symbolism read the Cosmic Liturgy and the Mind of God, and Number.
Alternatively, come along to the Way of Beauty Atelier weekend retreats this summer at Thomas More College of Liberal Arts, where you learn through experience how to pray and chant the Liturgy (no music knowledge required) and how all of this connects to the cosmos; and shapes Western culture.
Pictures: The baptismal font, top, is 11th century, from Magdeburg cathedral. The floor patterns are from the cathedral at Monreale, in Sicily and from the 12th century. The building is the 13th century octagonal baptistry in Cremona, Italy.
