וְאֵ֣ת הֶחָז֗וֹת וְאֵת֙ שׁ֣וֹק הַיָּמִ֔ין הֵנִ֧יף אַהֲרֹ֛ן תְּנוּפָ֖ה לִפְנֵ֣י יְהוָ֑ה כַּאֲשֶׁ֖ר צִוָּ֥ה מֹשֶֽׁה׃
And the breasts and the right thigh Aaron waved for a wave-offering before the LORD; as Moses commanded.
Read kabbalistic (mystical) interpretation of Leviticus 9:21: and classical mystical sources.