Luke 21

As the Savior prophesied of things to come and the signs of the times, He warned and counseld His disciples of what they may experience.  The line that I found meaningful was the statment -

"In your patience possess ye your souls."  (New Testament | Luke 21:19)

There are probably many interpretations including enduring to the end and receiving eternal life.  But for me possess means to own, have, or control.  In my mind, the Savior was teaching that as we exercise patience, especially patience in affliction, our spirit learns to control the body and develop Christ-like attributes for we learn that -

"...the spirit and the body are the soul of man."  (Doctrine and Covenants | Section 88:15)

It is in the patience of obedience then that gain sufficient control and attributes to qualify for eternal.