Abilities You Learn in One Part of the Game Are Useful Later in the Game

Continuity doesn't only have to come from external sources. In life, we provide our own continuities by applying skills learned in one part of our life to situations we find in another.

If you learn to swim underwater in one part of the game, and you need this skill in an emergency situation later in the game, this also creates Cohesiveness.

This, of course, is a technique already used frequently in many games.