10011. 'And pour it on his head, and anoint him' means a representative sign of Divine Good in the Lord, suffusing His whole Human. This is clear from the meaning of 'pouring oil on Aaron's head' as Divine Good suffusing the Lord's whole Human, for 'oil' means Divine Good, 4582, 9474, 'Aaron' the Lord in respect of Divine Good, 9806, and 'head' the whole Human; and from the meaning of 'anointing' as a representative sign of this thing, dealt with in 9474, 9954. The reason why 'the head' means the whole Human, or the whole person, is that everything in the human being comes down from the head; for the body is an extension from the head. Therefore also what a person thinks or wills, an activity that takes place in the head, presents itself in the body as an effect. The situation with the head is like that with what is highest or inmost in the heavens. This comes down and flows into heavens below, bringing them into being and making them extensions from itself. Therefore also the human head corresponds to the inmost heaven, the body down to the loins to the middle heaven, and the feet to the lowest heaven. In short, in things that are extensions only that which is inmost has life essentially. From this it is evident that since God is the inmost in all things, or what amounts to the same thing, is the highest of them all, from Him alone comes the life that all things possess. Therefore insofar as a person receives what is of God he has life within him.
[2] Furthermore the oil that a priest was anointed with flowed from the top of his head right down onto his body, as may be seen in David,
It is like the good oil upon the head running down onto Aaron's beard, which runs down over the collara of his garments. Ps 133:2.
In Matthew,
A woman poured an alabaster flask of balm over Jesus' head as He reclined [at the table]. Jesus said, She has poured this balm over My body to [prepare it for] the tomb. Matt 26:7,12.
And in Mark,
A woman came having an alabaster flask of very costly spikenardb; and breaking the alabaster flask she poured it over Jesus' head. And Jesus said, This woman has come beforehand to anoint My body for burial. Mark 14:3,8.
From these places it is also evident that 'anointing the head' is anointing the whole body.
[3] The use of 'the head' to mean the whole person is further clear from very many places in the Word, for example in Isaiah,
The redeemed of Jehovah will return, and will come to Zion with song, and everlasting joy upon their heads. Isa 35:10.
In Moses,
Let the precious things of the produce of the sun, the firstfruits of the mountains of the east, and the precious things of the earth come on the head of Joseph, and on the crown of the head of the Nazirite among his brothers. Deut 33:14-16.
In Jeremiah,
Jehovah's storm will burst upon the heads of the wicked. Jer 30:23.
In Ezekiel,
I will bring their way upon their own heads. Ezek 11:21; 16:43; 22:31.
[Similar words occur in] Joel 3:4,7; Obadiah verse 15. In Ezekiel,Woe to those who make veils upon the head [of persons] of every stature to hunt souls! Ezek 13:18.
In David,
God will bruise the head of [His] enemies, the hairy scalpc. Ps 68:21.
From all these places it is now evident that 'head' is used to mean the whole person, so that 'pouring oil on Aaron's head' means Divine Good in the Lord, suffusing His whole Human. While He was in the world the Lord made Himself Divine Truth, and when He left the world He made Himself Divine Good, see the places referred to in 9315(end), 9199(end).