(Ruth 3:13)... as Y”Y lives lie down until the morning, which is the right-side, in which is the power of the Written Torah, which is the Middle Pillar, for the Written Torah is given from the right-side, and from the left-side is given the Oral Torah, which is ‘female’.
And because of this ‘good’ (tov), the Righteous-One, ‘the life-force∞ḥaiy of the worlds’, is from the left-hand side, for it is ‘the mighty-one (gibor) who conquers his evil inclination’xlMishnah Avot 4:1 – which is Samael.
And because of this: ‘the left-hand rejects,’xliBT Sotah 47a and with the right-hand it raises, because one who is fallen should only be raised with the right hand, and because of this: As Y”Y lives, lie down until the morning.