In the first centuries the Church had a beautiful custom of praying seven great prayers calling afresh on Christ to come, calling him by the mysterious titles he has in Isaiah, calling to him; O Wisdom. O Root! O Key O Light! come to us!
Also check out the wonderful resources on the Advent Antiphons and aother mediaeval Wisdom on Julia Holloway’s beautiful website The Great O Antiphons
O Sapientia
O Sapientia, quae ex ore Altissimi prodiisti, attingens a fine usque ad finem, fortiter suaviterque disponens omnia:
veni ad docendum nos viam prudentiae.
O Wisdom, coming forth from the mouth of the
Most High,
reaching from one end to the other mightily,
and sweetly ordering all things:
Come and teach us the way of prudence.
I cannot think unless I have been thought,
Nor can I speak unless I have been spoken.
I cannot teach except as I am taught,
Or break the bread except as I am broken.
O Mind behind the mind through which I seek,
O Light within the light by which I see,
O Word beneath the words with which I speak,
O founding, unfound Wisdom, finding me,
O sounding Song whose depth is sounding me,
O Memory of time, reminding me,
My Ground of Being, always grounding me,
My Maker’s Bounding Line, defining me,
Come, hidden Wisdom, come with all you bring,
Come to me now, disguised as everything.
Malcolm Guite 
