תְּחִלַּ֣ת חָ֭כְמָה יִרְאַ֣ת יְהוָ֑ה וְדַ֖עַת קְדֹשִׁ֣ים בִּינָֽה׃
The fear of the LORD is the beginning of wisdom, and the knowledge of the All-holy is understanding.
Read kabbalistic (mystical) interpretation of Proverbs 9:10: and classical mystical sources.