וַיַּקְרֵב֙ אֶת־הָאַ֣יִל הַשֵּׁנִ֔י אֵ֖יל הַמִּלֻּאִ֑ים וַֽיִּסְמְכ֞וּ אַהֲרֹ֧ן וּבָנָ֛יו אֶת־יְדֵיהֶ֖ם עַל־רֹ֥אשׁ הָאָֽיִל׃
And the other ram was presented, the ram of consecration, and Aaron and his sons laid their hands upon the head of the ram.
Read kabbalistic (mystical) interpretation of Leviticus 8:22: and classical mystical sources.