Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Chela links Mara to the Great Crystal
S20E6
·
Snakedance Part 2
To
Chela surrenders the crystal to the Doctor
S20E6
·
Snakedance Part 2
Why These Connect
The narrative assertion
"After Chela provides the Doctor with the foundational legend and significance of the Great Crystal, that knowledge directly leads her to later hand him the 'Little Mind's Eye' crystal—a functional counterpart to the mythical artifact—bridging myth and science."
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.