Hi
“Kanjizai Bosatsu” is the origin of the sutra “Heart Sutra,” which is often read by Buddhists, and this is written as “Kanjizai Bosatsu,” and it means Kannon (Kanzeon Bosatsu). Kannon appears at the beginning of the most famous sutras. The starting point of worship for Eizan Zenji, one of the two ancestors of the Soto sect, was Kannon worship. As you can see, it can be said that Kannon and Buddhism are closely related.
I'll change my point of view a bit, but Japanese people have the idea that “ladyboys are watching.” In modern times, ladyboys (the sun) are stars in the galaxy shining due to hydrogen fusion, and they probably don't have eyes that can see people's actions, but even so, we still have the idea of “let's not do bad things even in places where there are no people,” even now. Also, we still treat things we can't see with awe, such as drawing “omikuji,” doing magic tricks, and putting our hands together with our ancestors. You might laugh it off if it's unscientific now, but as you can see even by watching the taiga drama “To Your Light” last year, ancient people cast curses as a real problem, and there are scenes that cast curses even in “Berabou,” which is currently being broadcast, so you can see how unseen things were treated as reality until just a little while ago.
You can imagine that India was the same at the time of the birth of Buddhism. When the Buddha attained enlightenment, even if he explained the truth he had learned, he thought it was useless because people wouldn't be able to understand it, and he just tried to settle into a comfortable world of enlightenment. However, there is a story that Bonten requested that the law be preached, and Shakyamuni decided to preach the law after being prompted by this. “Bonten” was the god of India at the time and should not have actually existed as a historical figure, but “Bonten” appears in a very normal context. Other Indian gods probably came to Japan along with Buddhism in this way.
It was in the last few decades or so in the history of mankind that we began to say “science,” “evidence,” etc. I think things that are invisible have continued to be worshipped over a long history.
I wasn't able to talk about it enough due to the number of characters, but as the monk who answered earlier said, each rank has something different, so I think it's a good idea to do your own research.