Well, without having read the specific 'past sins mlp fanfic', it's hard to say precisely. However, generally in MLP fanfics, they often take the known characters and settings and add new storylines. So this one might be about a character's hidden past, perhaps a dark secret that they've been carrying. It could be related to things like broken friendships, betrayals, or actions that go against the values of Equestria. Maybe it's about a pony trying to atone for their past sins and find redemption in the eyes of their friends and the community.
There are several places to search for it. Fimfiction is a great start as it has a large collection of MLP fanfics. Another option could be Archive of Our Own (AO3). Although it has a wide range of fanfics from various fandoms, it also has a good number of MLP ones. You can also check some MLP - focused forums where fans might share and discuss their fanfics.
The exploration of morality is a big theme. The seven deadly sins are used as a framework to question what is right and wrong in the MLP world. Also, the theme of chaos versus order often comes up. The sins can bring chaos, and the characters must restore order. In some fanfics, friendship is also a key theme. The ponies' friendships are tested when the sins are involved, and they have to rely on those bonds to get through difficult situations.
Well, 'The Temptation of the Seven' is a great fanfic. It tells the story of how the seven deadly sins are introduced to Equestria by an outside force. The author does a great job of depicting how the ponies react to these new and dangerous concepts. Some other fanfics might combine the elements of the seven deadly sins with the existing lore of MLP in very creative ways, making for very interesting reads.
In Twilight fanfiction, 'Sins of My Past' could also be about the Cullen family as a whole. Their long existence as vampires means they've surely had experiences that could be considered sins. It might show how they deal with the guilt of these past actions while trying to live a more 'moral' vampire life in Forks. Maybe they have to confront their past sins when a new threat emerges that is related to something they did long ago.
I'm not entirely sure specifically what this 'sins of the past naruto fanfic' is about without reading it. However, generally in Naruto, there are a lot of events in the past like the Uchiha clan massacre. It could be that this fanfic is centered around such major past events and the sins associated with them, like how Itachi's actions, which were considered a 'sin' by some in the context of killing his clan, are explored further.
The theme of 'Sins of My Past' in Twilight fanfiction is significant as it adds depth to the characters. It allows for a more complex portrayal of them. By exploring their past sins, we can understand their growth and development better. For example, if a character has committed a sin in the past, their journey towards redemption or atonement can be a central part of the story.
Well, first of all, check Naruto - specific fanfic communities. There are often forums where fans share and discuss their favorite fanfics. Someone there might be able to point you in the right direction. Also, don't forget to check social media groups dedicated to Naruto. Sometimes fans post links to interesting fanfics there, and you might get lucky and find 'sins of the past' that way.
One interesting concept could be the exploration of Spider - Man's inner struggles with past sins in a more in - depth way than in the original comics. It might show how his actions have long - lasting consequences on his relationships and his own psyche.
The fanfiction might also explore Twilight's past relationships in a different light. Maybe it shows a different side of her friendship with her mentor or how she interacted with ponies who were not as accepting of her studious nature. This can add depth to her character and give readers a new perspective on her.