The Fabric of Buddhism

In this video John talks about some of the symbolism associated with the meaning of the word sutra. Its literal meaning is thread. But if the thread of the sutra is, as it were, one line of the fabric to be weaved, the vertical say, what is the horizontal line? What or who is woven with it to constantly produce the miraculous fabric of Buddhism?

Video adapted from Kusen No. 336 given on 28th February 2021