Question

Allusions can help reveal a persons

Answer 1

Answer - Perspective

Allusions can help to reveal the perspective of an individual. Furthermore, allusions can be used to convey a lot of information quickly; they can be used to add layers of meaning to a text; and they can be used to bring out specific feelings and emotions.

Answer 2

Perspective, like having a different side as to what they see is a good thing, So it can be a good thing to see things in a different perspective. 
Hope I helped! Have Nice day!