The difference between implicit and explicit details is one of degree. Explicit details are those facts or ideas that are stated directly in the text, while implicit details are those that are implied or suggested by the text without being explicitly stated. Both are important to the process of interpreting the theme of a story, as they both contribute to the overall understanding of the story's meaning.
Explicit details are the most important when it comes to understanding the theme of a story, as they provide the most direct information that can be used to determine the story's overall message. Explicit details can include direct statements about a character's actions, their thoughts, or their feelings. They can also include the setting and other physical details of the story that can be used to help interpret the theme.
Implicit details, on the other hand, are less direct and require the reader to infer their meaning. These details can include subtle clues and hints about the characters, the setting, and the theme of the story. These details can be harder to discern, but they can be used to help paint a more vivid and complete picture of the story's overall meaning. By looking for these implicit details, the reader can gain a more complete understanding of the story's theme and its overall message.