The Tekiah sound of the Shofar is long so it can ascend to the right column, Chessed and the letter Y of the name. The sound of Shevarim connects to the left column, Gevurah and the upper letter H of the name. Teruah is the sound when the Tekiah and Shevarim as Chessed and Gevurah come together to form the central column and the letter V of the name.
The Shevarim has three short sound segments and Teruah should have nine (three times three) bursting sounds without a breath in between.
The three letters YHV יהו have numerical value of 21 as אהיה, which is the name of God at the source, a name that was revealed to Moses at the burning bush event. With this name God sent Moses to take the Israelites out of exile.
The lower letter H for Malchut has no sound. It is silent and awaits the light to come down.
That is why a Jewish bride is silent through the whole wedding process. She circles the groom seven times to bind his energy to her and then he does the work of channeling the light to the connection. The bride should be in a ‘vessel’ state of mind, which is a great desire to connect to the light with her husband to be as a channel.
When the great Shofar is blown it will connect the YHV יהו as one light and bring it down to Malchut. The spelled name יהו is יוד הא ואו has the numerical value of 39, the same as טל, ‘dew’, which is the ‘dew’ that will come down from heavens, שמים (=390= 39×10) to resurrect the dead.
Isaiah 26:19 “יִחְיוּ מֵתֶיךָ, נְבֵלָתִי יְקוּמוּן; הָקִיצוּ וְרַנְּנוּ שֹׁכְנֵי עָפָר, כִּי טַל אוֹרֹת טַלֶּךָ”
“The dead shall live, my dead bodies shall arise–awake and sing, ye that dwell in the dust–for your dew is as the dew of light, and the earth shall bring to life the shades”