Writers provide support for a text analysis primarily by using evidence. This evidence can come in the form of quotations from the text, summaries of relevant sections, or analysis of specific literary devices, themes, and characters. By grounding their analysis in concrete examples from the text, writers can effectively argue their interpretations and insights.
While forming new ideas, asking questions, and stating their opinions can also be part of the analysis, the key to providing robust support is the use of evidence to back up those ideas and opinions.