Well, while I disagree (of course) with much that Luther taught and regard some of it as heresy, I have never seen anything like Rosicrucianism in his writings.
I am very familiar with Rosicrucian beliefs, as I have books published by AMORC, the largest Rosicrucian order in the United States. Just google AMORC, and you’ll be taken to a link to their website.
Rosicrucian beliefs are indeed esoteric, extremely racist, and are extremely close to the beliefs held by the Nazi Party of Germany.
They believe that Jesus was not THE son of God, but A son of God, an “Avatar.” In their book THE MYSTICAL LIFE OF JESUS, they state openly that Jesus was NOT a Jew and COULD NOT HAVE BEEN A JEW because Jesus was an “Avatar” and all avatars must have PURE ARYAN BLOOD in their veins and that the Jewish people do not have worthy blood for one of them to be an Avatar. This is a purely Satanic belief and is as racist
as all hell. To call Jesus “the Aryan Gentile,” as the Rosicrucians do, is a blasphemy of the first order, denying completely God’s promise that the Savior of the World would spring forth from the blessed Children of Israel.
Moreover, the copies of the Rosicrucian literature are full of swastikas and chock full of occult doctrine. Thank God
Rosicrucianism is a very small movement and not very politically active. It is a thorough pagan and anti-Christian (true Christianity that is) Society, and racially anti-Semitic in it’s beliefs that Jews are inherently unworthy of being messengers of God because they have blood that is not “pure Aryan blood.”
I have never seen such teachings in the writings of Luther.
And the heart inside the Rose was said by Luther himself
to signify the Sacred Heart of Jesus.