בַּיָּ֤ם דַּרְכֶּ֗ךָ ושביליך [וּֽ֭שְׁבִֽילְךָ] בְּמַ֣יִם רַבִּ֑ים וְ֝עִקְּבוֹתֶ֗יךָ לֹ֣א נֹדָֽעוּ׃
Thy way was in the sea, And Thy path in the great waters, And Thy footsteps were not known.
Read kabbalistic (mystical) interpretation of Psalms 77:20: and classical mystical sources.