How does ball lightning work?

Abstract

The results of observations are described when ball lightning left material traces in the form of stone, metal balls, and molten metal after disappearing. There are also cases where ball lightning moved heavy objects over long distances: iron cages, people, magnets and even a train. This is explained by an assumption that the attraction of objects to ball lightning proceeds due to their polarization in its electric field and action of the electric field of clouds on it. Events are described when ball lightning dug trenches in wet soil and made deep holes in the ground. An explanation for these actions is given.