The first, entirely wood, Goetheanum burned down, the photographs which remain attest to its uncanny beauty. While the world has become ever more confused and conflicted in the mirrored halls of materialist realities "spiritual science" has continued to develop the Spirit and the power of the individual rational soul.
Steiner's book "Knowledge of Higher Worlds and their Attainment" lays out clearly the methods used to safely develop the rational soul inherent in all human beings and is available free in most digital formats.
"Knowledge of Higher Worlds…" describes methods which allow us to separate thought,feeling and will, thoroughly confounded in most materialist views.
"Spiritual science" according to Steiner, is just that, a science, obedient to logic and which allows any honest individual prepared to make the effort to obtain direct experience of metaphysical reality and to escape the satanic and Ahrimanic matrix of materialist illusion.
Steiner clearly separates two forms of evil which oppose the view of reality taught by Jesus Christ; the satanic and Ahrimanic entities which now contend for control of humanities future in radical disobedience to God's will.
Steiner should not be confounded with contemporary occultists like Alice Bailey, Helena Blavatsky and others usually described as 'anthroposophists."
The Blavatsky/Bailey 'anthroposophic' views share elements with Steiner's 'spiritual science' but they included luciferian/satanic and ahrimanic deceptions intended to guide and control the future spiritual development of mankind.
Steiner clearly and logically shows how individual moral and mental development gives direct personal experience of the Divine powers.
https://wn.rsarchive.org/Books/GA010/English/AP1947/GA010_index.html