Why do I have random “realizations” of the world and my body during meditation.

So, i started meditating the other day, and i had a sort of aha moment I realized that this virus (that shall not be named for reasons im about yo state ) may have come about due to all the bad karma in the world. I have no idea if that is true, but when i get a realization like that my body will usually start shaking and a warmth will envelop me, then in that i'll have the realization. This is just confusing.