Qametz ָ and pataḥ ַ – this one shut and this one open. These two, are those that close and open wellsprings – which are the vowel-points – towards the letters.
And the letter Vav ו, – when it is stretched upon the tops of the letters, the higher ḥayot [Var. letters] – is called rapheh. And when it is in the middle of the letters, it is called dagesh.
These letters are angelic-beasts∞ḥayot, of whom it is stated: (Ez. 1:14) And the ḥayot were ‘rushing and returning’... – rushing with dagesh, returning with rapheh.