Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Sarah trapped gasping in decompression chamber
S13E2
·
Terror of the Zygons Part 2
To
Doctor calms Sarah with hypnosis
S13E2
·
Terror of the Zygons Part 2
Why These Connect
The narrative assertion
"The Doctor's instruction for Sarah to conserve her breath while trapped in the decompression chamber logically leads to his decision to hypnotize her, as her physical distress necessitates a mental strategy to keep her alive."
About Causal Connections
A directly causes B. The first event sets forces in motion that produce the second. These are the load-bearing connections of plot--remove one and the story structure collapses.