My mom once said that endurance is easiest when you know how long you'll have to endure. So, if a trialing time in life has no known end date, it can feel like an impossible eternity...even if it only lasts a week. And the reverse is true. If you know that a challenge will only require 6 months of endurance, it feels manageable. The light at the end of the tunnel is a curious thing. I would like to understand the phenomenon better so that I can always have the hope for relief even when the end is unclear.