That’s a Big Question that legions of philosophers and theologians have wrestled with for millenia. There are two distinct meanings of “reason.” If you mean “purpose,” the answer is maybe? If you mean “cause,” yes. Every event involves other events. While humans (and animate walls) have motives and purposes, inanimate objects do not, so on one level, some events (caused by inanimate objects) have causes, but no purpose(s). There are those who ascribe purposes of events to higher beings; that would be a matter of faith. If you are wrestling with this question because of an unfortunate event, and you are religious, I recommend meeting with someone at Pastoral Counseling: bit.ly/bc-pastoral-counseling. Or, if you’d prefer, someone at UCS: bit.ly/BC-counseling.