Suggests the person is patiently enduring the wait, often with no control over the timing.

Patience Implication

Used when the wait might be frustrating or longer than expected.

Potentially Unpleasant

The phrase is figurative; it doesn't involve actual cooling of the heels.

Used when someone needs to calm their emotions, especially anger or frustration.

Advises taking time before making decisions to avoid regrets.

Implies taking a break to reduce stress or tension.