And this stone is the Yod י on top of א Aleph, and the Yod י at its end, of it is stated: (Is. 46:10) He tells the end from the beginning..., and She is [Var. and He is]: YOD QE VAV QE (=45) [Var. YOD QeY VAV QeY (=63) ] – comprising ten sephirot, which are [Var. which is]: ‘Their end is embedded in their beginning, and their beginning in their end’.’cxxxiiiSepher Yetzirah 1:7
All the Masters of the Academy rose, and they said: ‘O Faithful Shepherd! How powerful you are to throw the stone! For it reaches to a place, where there is no-one who knows its place, and holy angels enquire of it: ‘Where is the place of His glory to praise Him?’cxxxivLiturgical: Qedushah Prayer, Sephardi rite For there is no-one who knows its place, when it ascends above, in whichever is the place you have thrown it, so that all of them say: (Ez. 3:12) Blessed is the glory of Y”Y from His place – and even though it is small below, it has no end above.