9781. 'Pure, beaten' means what is [therefore] authentic and perceptible. This is clear from the meaning of 'pure' - when it refers to the good meant by 'oil' - as what is authentic, for the more heavenly and so more authentic the good is, the purer it is; and from the meaning of 'beaten' - when it refers to the good meant by 'oil' - as what is perceptible. Good is said to be perceptible when it is converted into truth, for good reveals itself through truth. Indeed truth is the outward form of good, and the good cannot be seen in light except within that form. The more perfect the form in which good presents itself therefore, the more clearly perceptible it becomes. For the good itself shines so plainly from that form that it moves both the understanding part of another person's mind and at the same time the will part. For what applies to goodness and truth applies also to a person's will and understanding, since the will has been dedicated to the reception of good and the understanding to the reception of truth. The will cannot manifest itself in light except through the understanding, for the understanding serves the will as its outward form and renders it perceptible. When a thing receives outward form it can be divided into its parts, and the various relationships and connections among the parts can be established when analysis shows how they are tied together. This is how good is presented in the understanding and made perceptible. Good made perceptible in the understanding is the truth of that good. This now explains why the oil had to be beaten, and the frankincense likewise, regarding which it says that it must be pure and that some of it shall be beaten very small and in this condition burned as incense, Exodus 30:34-36. Something similar to what is meant by that which has been 'beaten' is also meant by that which has been 'ground', as becomes clear from the meaning of 'wheat' and 'fine flour'; 'wheat' means good, and 'fine flour' the truth of that good. Even as that which has been 'beaten' or 'ground' means in the genuine sense good that is perceptible, so in the contrary sense that which has been 'beaten' or 'ground' means evil that is perceptible. This is meant by Moses' action, when he crushed the golden calf by grinding it right down, and having turned it into fine dust threw it into the brook descending from the mountain, Deuteronomy 9:21, regarding which, see 9391.