How and why is sequencing important in a piece of literature, using "Contents of a Dead Man's Pocket" as an example?

Sequencing is a very important part of plot, conflict and
theme development in literature. Thus it is also important to character development
since much character development comes from plot complications and resolution.
"Sequence" is defined as "an arrangement of two or more things in a successive order"
(Collins Dictionary). Sequencing is how events in the plot complications, conflicts and
resolutions are arranged in successive order.

Some works
are not sequenced in chronological order. This is because some sequencing is interrupted
by flashbacks and flash-forwards. Flashbacks provide "backstory," or what happened
before we meet the characters. Flash-forwards give a glimmer of future potentialities,
in other words, of what might happen. These flash-forwards can be good or bad. They
often help build suspense and a feeling of dread or, conversely, complacency (watch out
for the plot twist after complacency!). Modernists violate chronological sequencing
intentionally. They do this to create a sense of fragmentation in time, perception of
reality and characterization.  

Using "Contents of a Dead
Man's Pocket" as an illustration, sequencing is important in chronology and in
flash-forwards. The sequential description of his actions and thoughts at the beginning
of the story build interest and a sense of impending trouble. The sequential detailing
of every minute action Tom takes builds suspense. The flash-forwards to the potentiality
of falling to his death adds further suspense and horror while building deep sympathy
with him.

He
saw himself falling with a terrible speed as his body revolved in the air, knees
clutched tight to his chest, eyes squeezed shut, moaning
softly.