Final answer:
The crisis in Jefferies' apartment symbolizes a turning point in his life, with significant implications for his future.
Step-by-step explanation:
In Jefferies' apartment, the crisis symbolizes a turning point in his life. It represents a significant moment of change and important decisions that will shape his future. The crisis is portrayed as something that sneaks up on Jefferies, without any forewarning. It is compared to a small turn of the rudder that can determine the course of a ship, leading it either to success or failure.