9600. The length of one curtain shall be eight and twenty cubits. That this signifies the holiness of truth from good, is evident from the signification of "length," as being good (see n. 1613, 8898, 9487); from the signification of a "curtain," as being the interior truth of faith which belongs to the new understanding (of which above, n. 9595); and from the signification of "eight and twenty," as being the holiness of conjunction. That this is the signification of "eight and twenty" is because this number arises from the multiplication of seven by four, and by "seven" is signified what is holy (n. 433, 716, 881, 5265, 5268), and by "four" conjunction (n. 1686, 8877). For numbers when multiplied have a similar signification to that of the simple numbers of which they are the product (n. 5291, 5335, 5708, 7973). From this it is plain that by "the length of one curtain being eight and twenty cubits" is signified the holiness of truth from good.