But no gate is open except the gate of tears. And what is it? The ‘daughter of the eye’ (bat)’ayin. For a tear emerges from it, and upon it is stated: (Ps. 17:8) Guard me as the pupil ‘of the eye’ (bat)’ayin. And through it (Ex. 2:6)... and behold, a crying child... towards the blessed Holy One, that He may have compassion upon him in exile. It is this that is written: (Ps. 102:14) You shall rise and have mercy upon Zion.
Because She is the ‘flame (labat) of fire’, which was shown to Moses in the bush, as it is written: (Ex. 3:2) And an angel of Y”Y appeared to him, in a ‘flame of fire’ from the midst of the bush – She is BaT (daughter) from the word Be-REiShYT, and this is Be-REiShYT...