And because of this, the time of conjugality (’onah) for scholars is on the Sabbath,cxxviiiBT Ketubot 62b for of weekdays, when Metatron rules, it is stated: (Ez. 46:1)... it will be closed, for the six working days... – during it the week the gate is closed, and on the Sabbath day, it is opened. The gate is opened, and the Shekhinah emerges from it, to be united with Her Husband.
And at that time, She is called ‘the full cup (kos)’. It is this that is written: (Deut. 33:23)... and full of the blessing of Ha-Shem, possessing (yarashah) the sea and the south. For on the days of the week, She is called ‘dry land’ (yabashah), in Metatron. It is this that is written: (Gen. 1:9) And ELQYM said: ‘Let the waters be gathered, from beneath the heavens to one place, and let the dry land be visible...’