It requires awesome powers of perception for a fish to distinguish between food in the water and a beguiling lure concealing a deadly hook.
Fish frequently pursue their prey early in the morning and in the dusk as the sun descends.
Likewise, human courtship demands keen discernment. A momentary lapse can dangerously disclose either too much or too little of the pursuit.
Humans frequently pursue their prey early in the morning, in the dusk as the sun descends, or at any time in between.