Tiferet is the beauty of the resurrected body. Resurrection is to be awakened or to come to sudden realization.
Example: Jerusalem is called to wake up to her potentials:
O Jerusalem, the holy city! (Isaiah 52:1) "NKJV"
Jerusalem was too unconscious to realize that she was arrayed in splendour, hence someone was waking her up to recognize her greatness.
The sleeping Jerusalem was the old Jerusalem, and the awakened Jerusalem is the new Jerusalem. The old Jerusalem was chaos and the new Jerusalem is harmony.
The old Jerusalem was the old chaotic universe: the former heaven and the former earth.
There are heavenly bodies and earthly bodies; the beauty that belongs to heavenly bodies is different from the beauty that belongs to earthly bodies. (1 Corinthians 15:40) "GNT"
Everything God created in heaven and on earth is beautiful. Islam, Christianity and Judaism are some examples of the beauties created by God. The three religions are made up of people, and the people constituting each religion are examples of earthly beauties. The heavenly counterparts of the three religions are the moon, the sun, and the stars.
The sun has its own beauty, the moon another beauty, and the stars a different beauty; and even among stars there are different kinds of beauty. (1 Corinthians 15:41) "GNT"
The sun: Christians
These beauties are invisible in death.
Death implies division. Christians can't see the good in Islam where there is hostilities between Muslims and Christians; neither could the Muslims see good in Christianity. It is only at the point of reconciliation (the Axis Mundi) that Muslims and Christians will begin to appreciate each other.
Muslims can't discover the rich wisdom of the universe in Islam while devoting themselves to judgment. Neither could Christians realize the wisdom of the universe in Christianity while they are focused on accusing people of sin.
He will appear a second time, not to deal with sin, but to save those who are waiting for him. (Hebrews 9:28) "GNT"
Once everyone is reconciled at the Axis Mundi (the tree of life), religion will become a university where people are taught the wisdom and pure knowledge of the universe. Teaching will advance from pointing out sin to educating people about God and the universe.
People will find the teachings of Islam, Christianity, Judaism, Buddhism, and Hinduism, and other religions, very attractive when no one accuses others of sin or threatens them of punishment.
To be attractive is to be beautiful. Therefore the religions are transformed from ugly to beauty. Everyone loves what is beautiful.
When buried, it is ugly and weak; when raised, it will be beautiful and strong. (1 Corinthians 15:43) "GNT"
Therefore Tiferet is about attraction. It confers such beauty that attracts and invite people to the tree of life.
(Isaiah 52:7) "NKJV"