Nice to meet you, Ribon.
I don't know what happened, so I can't talk about the details, but they say they have no idea because they thought about the cause and effect themselves.
Cause and effect is not a matter of whether you have an idea or not, but rather how your own words, actions, and consciousness work, so it's not just about what you can see.
It is also conceivable that you unknowingly had some influence on someone.
However, since I can't think of anything I'm unaware of, why don't you put that aside for now that is all you think about?
People have biorhythms.
It's not explained in Buddhism, but it is certain that there are ups and downs.
I think it's probably in a slightly sunken state right now, but don't be impatient.
As you said, “Does this mean I should learn something?” Maybe this is an opportunity to learn something.
If this is an opportunity for you to take this opportunity to carefully review your surroundings or try something new, and face yourself firmly with the feeling that you are starting over again, something will surely change.
Rather than thinking about various things and stopping, it may be better to switch your mind in a direction where you can make good use of your current time.
You can only see yourself now, which you can't see when you're in good shape.