Use 'flash past' to imply something moves so fast it's only briefly seen or noticed.

Speed Implication

'Flash past' can describe a fleeting rush of sensory experiences, not just visible objects.

Sensory Rush

'Flash past' can metaphorically suggest any rapid transition, not only physical movement.

'Flash past' highlights the short duration of events or experiences in one's perception.

Use 'flash past' to emphasize the intensity or suddenness of events or memories.