it rarely passes
from one consonant to another without the interposition of a word
beginning with a vowel. This is why in the Word the particle "and" is
so often interposed, as can be seen by those who read the Word in the
Hebrew, in which this particle is soft, beginning and ending with a
vowel sound. Again, in the Word, in Hebrew, it can in some measure be
seen from the words used whether they belong to the celestial class
or the spiritual class, that is, whether they involve good or truth.
Those involving good partake largely of the sounds of u and o, and
also somewhat of a, while those involving truth partake of the sounds
of e and i. Because it is especially in tones that affections express
themselves, so in human speech, when great subjects are discussed,
such as heaven [caelum] and God [Deus], those words are preferred
that contain the vowels u and o; and musical tones, whenever such
themes are to be expressed, rise to the same fullness; but not when
less exalted themes are rendered. By such means musical art is able
to express affections of various kinds.

{Footnote 1} [As these vowels are pronounced in European
language. -- Tr.]

242. In angelic speech there is a kind of symphony that cannot be
described;{1} which comes from the pouring forth and diffusion of the
thoughts and affections from which speech flows, in accordance with
the form of heaven, and all affiliation and all communication in
heaven is in accordance with that form. That angels are affiliated in
accordance with the form of heaven, and that their thoughts and
affections flow in accordance with it may be seen above (n. 200-212).

{Footnote 1} In angelic speech there is a symphony with
harmonious cadence (n. 1648, 1649, 7191).

243. Speech like that in the spiritual world is inherent in every man
in his interior intellectual part; but man does not know this,
because this speech does not with man, as with angels, fall into
words analogous to affection; nevertheless this is what causes man,
when he enters the other life, to come into the same speech as
spirits and angels, and thus to know how to speak without
instruction.{1} But more on this subject hereafter.

{Footnote 1} There is spiritual or angelic speech belonging to
man, though he does not know it (n. 4104). The ideas of the
internal man are spiritual, but during his life in the world
man perceives them naturally, because he then thinks in what is
natural (n. 102