My advice is: treat it like a huckster’s quote, like the truckload of Einstein quotes invented by an indian guru guy in 1995.
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He may have said it, but the source is this guy.
https://www.bibliotecapleyades.net/…/esp_ciencia…
Footnote
Ralph’s experience with the maharaja’s son led him to:
“… a conversation with the famous scientist, Dr. Nikola Tesla, in 1942. Tesla said,
’If you want to find the secrets of the Universe, think in terms of energy, frequency and vibration.’ I spent the last 50 years doing just that, and my products are a direct result of this investigation.”
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“I first learned about “purple plates” when I read Linda Goodman’s book Star Signs: The Secret Codes of the Universe in 1987.”
That’s about how and when I learned it too.
“Nikola Tesla is an inventor attributed to inspiring the technology of purple plates, a tachyon energy product. However, information for creating these plates based on Tesla’s ideas came from Ralph Bergstresser, a man who once worked with Tesla.”
https://www.learnreligions.com/purple-plates-1731304
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