אֱלֹהִ֣ים צְבָאוֹת֮ שֽׁ֫וּב־נָ֥א הַבֵּ֣ט מִשָּׁמַ֣יִם וּרְאֵ֑ה וּ֝פְקֹ֗ד גֶּ֣פֶן זֹֽאת׃
O God of hosts, return, we beseech Thee; Look from heaven, and behold, and be mindful of this vine,
Read kabbalistic (mystical) interpretation of Psalms 80:15: and classical mystical sources.