So it is required of Israel, that their acts of unity be in holiness and in blessing. And thus will all their sustenance be in blessing and holiness, and ‘there is no holiness within less than ten’,xlBT Megillah 23b which is the letter Yod י (=10).
And because the ring is a י Yod which appears like this: ם final-Mem, a bride is consecrated with it, and it is required to be placed upon her finger, which is an image of the letter ו Vav, and it is made into a ז Zayin. And two witnesses are required who correspond to ה-ה Hei-Hei. And when the ring is on the top of the finger, and it is made into a ז Zayin (=7), that is the time she should be blessed, with the seven blessings which a bride inherits.