https://kahalyahweh.net/Articles/chirho.htm
The Chi Rho: Ancient Symbol
Is this symbol for “Christ” really what we think it is? The truth is…this is an ancient worship symbol vastly predates the coming of our Savior…portending the power behind the coming anti-messiah.
“Labarum is the name by which the military standard adopted by Constantine the Great after his celebrated vision (Lactantius, "Demortibus persecutorum", 44), was known in antiquity. … In form, the labarum of Constantine was an adaptation of the already existing cavalry standard of the Roman army; the pagan emblems were merely replaced by Christian symbols.” (Catholic Encyclopedia (1913)/Labarum (Chi-Rho))
Note that the this alleged Christian symbol was originally a pagan emblem “known in antiquity”. What that means is that the reference to Plato’s Timaeus in the next paragraph reveals that the ChiRho, or Labarum, was a well known pagan symbol … nearly 400 years before the “Christian” era!
Though modern representations of the chi-rho sign represent the two lines crossing at ninety degree angles, the early signs of the labarum cross at an 
angle that is more vividly respresentativbe of the chi formed by the solar ecliptic path and the celestial equator. This image is most familiar inPlato's Timaeus,[8] where it is explained that the two bands which form the world soul (anima mundi) cross each other like the letter chi. Not only did the two legs of the chi remind early Christians of the Cross, "it reminded them of the mystery of the pre-existent Christ, the Logos Theou, the Word of God, who extended himself through all thing in order to establish peace and harmony in the universe," in Robert Grigg's words.[9] Hugo Rahner summarized the significance:
"The two great circles of the heavens, the equator and the ecliptic, which, by intersecting each other form a sort of recumbent chi and about which the whole dome of the starry heavens swings in a wondrous rhythm, become for the Christian eye a heavenly cross.[10] Of Plato's image in Timaeus, Justin Martyr, the Christian apologist writing in the second century, found a prefiguration of the Cross,[11] and an early testimony may be the phrase in Didache, "sign of extension in heaven" (sēmeion ekpetaseōsen ouranō).[12]
Not only was this pagan symbol well known in the pagan world centuries before our Savior even came into the scene, it was associated with something that is completely ignored…and for good reason! Note the “S” wrapping the bottom portion of the verticle pole in the above picture. This is the ancient astrological sign of ‘serpens’, the symbol of the serpent healers! [See Snake Worship and Astrology]
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以下影片製作，應該是異端教派所作，但因為找不到其它中文版有關資料，所以就只好轉載，內容大致應該沒問題，除了講及獵戶座有待斟酌。