“ כָּל-הַנְּחָלִים הֹלְכִים אֶל-הַיָּם, וְהַיָּם אֵינֶנּוּ מָלֵא; אֶל-מְקוֹם, שֶׁהַנְּחָלִים הֹלְכִים–שָׁם הֵם שָׁבִים, לָלָכֶת”
“All the rivers flow into the sea, Yet the sea is not full. To the place where the rivers flow, There they flow again.”
Rabbi Shimon tells that one time he went up to the springs of the rivers and rabbi Aba followed him. This is a code that describes their studies as spiritual connections to Binah, drawing water, which is Light from the springs, which is light of Binah to the sea, which the world of Malchut.
Because Malchut is a state of darkness and exile, the light from Binah appears as streams of Light, rivers, and can not fill up the entire level/sea. This is the aspect of ‘Yet the sea is not full’.
The Light would fill the entire space/level of Malchut. When in darkness, the light appears as streams that comes down but can not fill the space. When the sea would be full, which would happen after the Final Redemption, we will be ‘swimming’ in a sea full of living waters, which is the Light of Binah.
“הֵן לֹא-קָצְרָה יַד-יְהוָה, מֵהוֹשִׁיעַ; וְלֹא-כָבְדָה אָזְנוֹ, מִשְּׁמוֹעַ”
“Behold, YHVH’S hand is not so short That it cannot save; Nor is His ear so dull That it cannot hear.”
The YHVH name is the aspect of mercy. The Zohar reveals that the names that are called ‘יד’ ‘hand’ of YHVH are the source of Light to all. The ‘Great hand’ (Exodus 14:31), the ‘Strong hand’ (Deuteronomy 34:12), the ‘High hand’ (Exodus 14:8) are all aspect of light of mercy.