וְנָתַתָּ֤ אוֹתָם֙ עַל־סַ֣ל אֶחָ֔ד וְהִקְרַבְתָּ֥ אֹתָ֖ם בַּסָּ֑ל וְאֶ֨ת־הַפָּ֔ר וְאֵ֖ת שְׁנֵ֥י הָאֵילִֽם׃
And thou shalt put them into one basket, and bring them in the basket, with the bullock and the two rams.
Read kabbalistic (mystical) interpretation of Exodus 29:3: and classical mystical sources.