בַּצָּרָ֥ה קָרָ֗אתָ וָאֲחַ֫לְּצֶ֥ךָּ אֶ֭עֶנְךָ בְּסֵ֣תֶר רַ֑עַם אֶבְחָֽנְךָ֨ עַל־מֵ֖י מְרִיבָ֣ה סֶֽלָה׃
Thou didst call in trouble, and I rescued thee; I answered thee in the secret place of thunder; I proved thee at the waters of Meribah. Selah
Read kabbalistic (mystical) interpretation of Psalms 81:8: and classical mystical sources.