And the mystery of the matter: (Zech. 4:2)... seven and seven pipes... until they add up to 14∞YaD, which are the 14 letters of YQVQ YOD QE VAV QE – and this is... and David playing by ‘hand’ (yad, =14). (1 Sam. 19:9)
YaD (hand corresponding to YaD, =14), and [the lesser] letter Hei ה ascends through the letter Vav ו, after which Vav ו (=6) ascends through Yod י (=10), six times ten, until it adds up to sixty.
And they are ‘the cleaving letters’ of the recitation of the Shm’a, for the sake of which it is stated:lxiBT Berakhot 15b ‘Anyone who places a space between the cleaving letters – they cool down