People
Although the world is full of suffering, it is also full of the overcoming of it.
— Helen Keller

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The sentence holds suffering and the overcoming of suffering together in one view of the world. It acknowledges pain without allowing pain to become the whole picture. The repeated phrase 'full of' gives human endurance a presence as substantial as the hardship it answers.
Context reviewed