אֱֽלֹהִ֗ים בְּ֭צֵאתְךָ לִפְנֵ֣י עַמֶּ֑ךָ בְּצַעְדְּךָ֖ בִֽישִׁימ֣וֹן סֶֽלָה׃
O God, when Thou wentest forth before Thy people, When Thou didst march through the wilderness; Selah
Read kabbalistic (mystical) interpretation of Psalms 68:8: and classical mystical sources.