Water, Fire and Food/Shelter(Colder regions)

What are three objects you couldn’t live without?

I have experienced that feeling when I was in wild without any food or shelter but just magnifying glass and an empty metal water bottle.

I felt that everything we strives for everyday are really accessories without which life is 100% possible.

All well need is water, Fire and Food (that we need to know how to get it in wild) and shelter if it’s cold out there.