What are the common themes in 'Harry Potter and Castiel fanfiction'?

Friendship is also a big theme. Harry and Castiel are from different universes, so the development of their friendship is often at the center of the stories. They have to overcome cultural and power - based differences to become friends, which makes for an interesting read.

One common theme is the struggle for control. Harry has to deal with Castiel's power and sometimes they might fight for who's in charge. Another theme is the exploration of new abilities. Harry gets access to Castiel's angelic powers and has to learn how to use them.

Themes of protection and destiny are also common. Given Castiel's role as an angel, there's often a sense of him protecting Harry from various threats. Destiny comes into play as Harry might be seen as having a special purpose in both worlds. In some stories, it's about uniting the two worlds, which means Harry has to overcome many obstacles. There can also be themes of friendship, as Harry's friends from the wizarding world react to his newfound angelic heritage and he has to deal with new relationships in the Supernatural world as well.

In many 'harry x castiel angel of death fanfiction', the theme of identity also comes up. Both characters have very distinct identities. Harry is known as a wizard, a hero in his own right. Castiel is an angel with a specific role. When they come together, they often question and redefine their identities. They might start to see themselves in a new light because of their relationship with each other. This exploration of self - identity in the context of their relationship is quite common.

One common theme is redemption. Since Castiel has made some mistakes in the show, a lot of fanfiction focuses on him trying to make up for those. Another theme is his relationship with the other main characters, like Dean and Sam. His loyalty and how it is tested is often explored.

One common theme is Castiel's struggle with his angelic nature and his growing humanity. He often has to choose between following angelic orders and doing what he believes is right. Another theme is his loyalty to the Winchesters, especially Dean. His relationship with Dean is a central focus in many fanfics, whether it's a deep friendship or something more. Also, themes of redemption are common, as Castiel has made many mistakes in the series and fanfics often explore his path to redemption.

One common theme is redemption. When Castiel is hurt, often the story will revolve around him finding a way to redeem himself, whether it's from a mistake he made that led to his pain or just from a sense of lost purpose. For example, in some fanfictions, he might have been hurt because he trusted the wrong entity and then has to make amends.

One common theme is friendship. Their bond, whether it's a platonic friendship or something more, is often explored. Writers like to show how they support each other through tough times.

One common theme is the theme of rescue. Usually, the other characters, like Dean and Sam, will go to great lengths to save Castiel. For example, they might face numerous dangerous creatures or powerful enemies in their quest to rescue him.

One common theme is identity. Since Castiel is usually male in the original series, when she's female in fanfiction, there's a lot of exploration about how she sees herself and how others perceive her. For example, some fics show her struggling with the new body and the expectations that come with it.