Before the veil of the sanctuary - This is generally understood to mean the floor of the holy place in front of the veil.

And the priest shall dip his finger. —The different treatment of the blood is here to be noticed. While in the case of the other sacrifice…

And the priest shall dip his finger in the blood
The finger of his right hand, as Gersom observes, and so Maimonides…

Burnt offerings, meat offerings, and peace offerings had been offered before the giving of the Law on Mount Sinai; and in these, the patriarchs add…