The sacrificial system in ancient Israel was a vital aspect of their spiritual life, designed to address sin and maintain a covenant relationship with God. The priest's actions in this ritual were highly symbolic. By placing the blood on the horns of the altar, the priest was performing an act of atonement, signifying the transfer of sin and its cleansing. The altar, located in the tent of meeting, was a sacred space where God's presence was believed to dwell among His people.
Pouring the remaining blood at the base of the altar of burnt offering further emphasized the need for a complete and thorough purification process. This ritual underscored the gravity of sin and the necessity of a mediator, in this case, the priest, to intercede on behalf of the people. It also foreshadowed the ultimate sacrifice of Jesus Christ, who Christians believe fulfilled the need for such rituals by offering Himself as the perfect atonement for sin. This practice served as a constant reminder of God's holiness, the seriousness of sin, and the grace available through repentance and sacrifice.