It rained heavily the other day, and the Toona sinensis tree behind my house was killed by lightning. Is this a good sign?

Maybe trees have conductive elements. Trees are vulnerable to lightning. That's why you can't take shelter from the rain under the tree. If you have to predict anything, it may be that the tree has been tempered for a long time and you want Du Jie. It is also possible that the tree absorbed something ominous and was killed immediately in a thunderstorm.