Shakespeare's poetry wheevor wrote it was written at the end of the Late medieval period, when Renaissance ideas of worldly life, individual liberty and a marketplace of responsibilities and choices were not wholly accepted. bright as the Poet who wrote the Shakespearean portions of the work had to be, he wa more Late medieval than renaissance in his thinking.His favorite themes are the injustice that people get for loyal service, the pain of unhappy love, the disappointment of not getting what one has deserved, the brevity of time, the beauty that cannot last long, the importance of god friends, honesty and caution, and he danger of an imbalance or one-sidedness to character and purposes.He is a closet Medieval protestant religionist who talks about luck, divine justice and missed opportunities in the same breath. His favorite poetic device is the pathetic fallacy ; here he personifies as living actors inanimate things and emotions revenge, stones, storms, the sun, drugs, etc.nd he characteristically uses three-step development scheme in a poem or speech:1. Deny the usual idea about something.2. Replace it with a clearer or better idea.3. Then develop the consequences of that change.He uses this over and over.The sonnets occupy by far the largest part of the Poet's works. They're the chief source, along with Venus and Adonis, a reworked early satire of Queen Elizabeth's amorous advances to young courtiers, The Rape of Lucrece a practice poem for writing Titus Andronicus and other ancient history plays, and the shorter poems.The sonnets, some rewritten from other men's work but the vast majority by the Poet or rewritten by him, is far the most important source.