This is what's got them all stirred up:

https://russian-faith.com/trends/putins-christian-vision-n883

excerpt:

Putin's Christian Vision

Putin continuously makes it clear that he envisions Russia as a Christian country.

In 2014, Putin called for the restoration of Kremlin’s historic Chudov (“of the Miracle”) and Voznesensky (Ascension) monasteries both of which were destroyed by the Bolsheviks. He also wants another church destroyed by the Bolsheviks in the Kremlin to be rebuilt.

While the project is currently on hold until a scientific research is completed on the sites, the intent itself is symbolic.

The Kremlin is both the political and historic center not just of Moscow but of Russia. By calling for the restoration of these Christian buildings Putin repudiated the Soviet legacy with its atheist ideology and its record of anti-Christianity and reaffirms Orthodoxy as the heart of Russian culture.

A key element of Putin’s worldview is not just his commitment to the Russian Orthodox Church as an institution, but also his admiration for three 19th and 20th century Russian Christian philosophers—Nikolai Berdyaev, Vladimir Solovyov and Ivan Ilyin, all of whom he often quotes in his speeches. Russia’s regional governors were even instructed to read the works of these philosophers during their 2014 winter holidays.