כַּאֲשֶׁ֛ר צִוָּ֥ה יְהוָ֖ה אֶל־מֹשֶׁ֑ה וַיַּנִּיחֵ֧הוּ אַהֲרֹ֛ן לִפְנֵ֥י הָעֵדֻ֖ת לְמִשְׁמָֽרֶת׃
As the LORD commanded Moses, so Aaron laid it up before the Testimony, to be kept.
Read kabbalistic (mystical) interpretation of Exodus 16:34: and classical mystical sources.