PQA stands for 'point, quote, analysis'. In a literary text, you may be asked to highlight the features which strenghten your essay's argument. To do so, it is best to first:
1) State the point you wish to make (point)
2) Show evidence of the point you wish to make (either a direct quote, or paraphrasing) (quote)
3) Analyse why this piece of evidence shows the point you wish to make. (analysis)