קְנֵ֣ה חָ֭כְמָה קְנֵ֣ה בִינָ֑ה אַל־תִּשְׁכַּ֥ח וְאַל־תֵּ֝֗ט מֵֽאִמְרֵי־פִֽי׃
Get wisdom, get understanding; Forget not, neither decline from the words of my mouth;
Read Kabbalistic (mystical) interpretations of Proverbs 4:5: Zohar and classical Jewish mystical sources, free online.