Right Thought is thought that supports Healing and Connection. Right thought is thought that supports the expansion of consciousness into the physical unit. Right thought is thought that encourages Right Orientation, and that is in perfect alignment with one's own Resident Monadic Self.
Right Thought is one of the Three Rs of Alignment, (the others being Right Environment and Right Action) that, when taken together, provide the foundations of Healing and Connection. Taken together, right thought, action, and environment constitute the LPs Alignment Rule Set
On the Lightning Path, right thought is the equivalent of the Jainism's samyak darshan (right perception) + samyak jnana (right knowledge). On the Lightning Path, right thought is a combination of right perception and right knowledge.
The Zoroastrian Gathas open with statements about "good thought", good words, and good deeds. "I praise good thoughts, good words, and good deeds and those that are to be thought, spoken, and done. I do accept all good thoughts, good words, and good deeds. I do renounce all evil thoughts, evil words, and evil deeds. " GBd Introduction, 4
GBD 11. 17 "I celebrate my praises for good thoughts, good words, and good deeds for my thoughts, my speeches, and (my) actions. With chanting praises I present all good thoughts, good words, and good deeds, and with rejection, I repudiate all evil thoughts, and words, and deeds"
Good thoughts are "useful thoughts and wise thoughts and great thoughts and wholesome thoughts and kindly thoughts and virtuous thoughts and good thoughts." Bad thoughts are " idle thoughts and foolish thoughts and mean thoughts and malicious thoughts and cruel thoughts and vicious thoughts and evil thoughts."
A Zoroastrian avowal of faith indicates the significance of "well-thought thought," "well-spoken word," and "well-performed act." 
Emanuel Swedenborg speaks about right thought in the context of his discussion of Inner Self and Outer Self in New Jerusalem, though he does not give it a name, and his discussion is vague and confused (Swedenborg, 2016: 3: 42-).
Sosteric, Mike & Ratkovic, Gina. Lightning Path Workbook Three - Connection. Vol. 3. Lightning Path Workbook Series. St. Albert, Alberta: Lightning Path Press, 2017. https://press.lightningpath.org/product/the-lightning-path-book-three-connection/
- Dhalla, Maneckji Nusservanji. History of Zoroastrianism. New York: Oxford University Press, 1938.
- Boyce, Mary. A History of Zoroastrianism: Volume One The Early Period. New York: E. J. Brill, 1996. p. 254.