Quote from : The Routledge History of Literature in English: Britain and Ireland Book

In the humanist world following Erasmus, man is at the centre of the universe. Man becomes largely responsible for his own destiny, behaviour and future. This is the new current of thought which finds its manifestation in the writing of the 1590s and the decades which follow. The euphoria of Elizabeth's global affirmation of authority was undermined in these years by intimations of mortality: in 1590 she was 57 years old. No one could tell how much longer her golden age would last; hence, in part, Spenser's attempts to analyse and encapsulate that glory in an epic of the age. This concern about the death of a monarch who - as Gloriana, the Virgin Queen - was both symbol and totem, underscores the deeper realisation that mortality is central to life. After the Reformation, the certainties of heaven and hell were less clear, more debatable, more uncertain.