And see, to comprehend this saying we need to introduce the subject that the Sefirot are ten from above towards below, ánd ten from below towards above, is as the resemblance of a spark of the sun coming and reaching a polished mirror, and the light turns and returns towards its source, similar the subject with the Sefirot, as they come from above downwards until Malkut, and there is the station of the light, and it returns to its source by way of journeys [= in stages], as just as they are ten from above downward, similarly then are ten from below upward, and we will this discourse in more length in its own Gate [Gate 15], with help of HaShem.
And see, this mystery is explained within the form of the [letter] א (Aleph), which is י (Yud) above, [and] י (Yud) below, to reveal the source of the light from above downward, and from below upward, and they [= the two Yud] are the upper waters and the lower waters, as we will explain in the Gate on the entries of the special names [Gate XXIII] in the entry ‘water’.
And see, the ו (Wav) that is between the two י (Yud) is Tif’eret, the one who unites the upper waters and the lower waters, and this is ‘the half-shekel’ which is situated exactly between the shekel which is the complete measure, the measure of Atsilut/Emanation: ten from above downwards and ten from below upwards, and it [the Wav/Tif’eret] is situated exactly between and the medium between the two Yud which are ‘twenty gerah’, the ‘shekel’. And now the meaning of the half-hin [the two “He’s”] and the meaning of the half-shekel are all one [and the same] matter. And [thus] the first contradiction is solved [the Wav is placed between two Yud]. ‘The stone to weigh with, it is a Yud’. Explanation: this stone has always the shape of י (Yud), which is called ‘stone’, and all ‘stone’ refers to the essence of Yud as we will explain in the Gate on the entries of the special names [Gate XXIII] in the entry ‘stone’, with help of HaShem.