וְלָֽקַחְתָּ֙ מִדַּ֣ם הַפָּ֔ר וְנָתַתָּ֛ה עַל־קַרְנֹ֥ת הַמִּזְבֵּ֖חַ בְּאֶצְבָּעֶ֑ךָ וְאֶת־כָּל־הַדָּ֣ם תִּשְׁפֹּ֔ךְ אֶל־יְס֖וֹד הַמִּזְבֵּֽחַ׃
And thou shalt take of the blood of the bullock, and put it upon the horns of the altar with thy finger; and thou shalt pour out all the remaining blood at the base of the altar.
Read kabbalistic (mystical) interpretation of Exodus 29:12: and classical mystical sources.