כָּל־מְלֶ֥אכֶת עֲבֹדָ֖ה לֹ֣א תַעֲשׂ֑וּ וְהִקְרַבְתֶּ֥ם אִשֶּׁ֖ה לַיהוָֽה׃ (ס)
Ye shall do no manner of servile work; and ye shall bring an offering made by fire unto the LORD.
Read kabbalistic (mystical) interpretation of Leviticus 23:25: and classical mystical sources.