You can compare yourself in an elevator...Check your personality compare it to the elevator..Like "An elevator carries many people and you carries many problems..Then the elevator will go up and down still carrying people and it will never collapse,Just like me many problems are coming but im still here finding an answer to solve my problem"..Like that.
Elevator is a non living things and people are living things .. that is the differentiate.
but in similar the elevator is an a device that can go down and up . in people it is the the succeess in our life.