הְֽ֭מִיָּמֶיךָ צִוִּ֣יתָ בֹּ֑קֶר ידעתה שחר [יִדַּ֖עְתָּה] [הַשַּׁ֣חַר] מְקֹמֽוֹ׃
Hast thou commanded the morning since thy days began, And caused the dayspring to know its place;
Read kabbalistic (mystical) interpretation of Job 38:12: and classical mystical sources.