In a find an old friend story, a frequent theme is the rediscovery of shared memories. You might recall the fun times you had, like parties you attended together or adventures you went on. There's also the theme of how time has changed both of you. Maybe one has become more confident or has different interests now. And of course, there's the theme of renewal of the friendship, where you decide to be in each other's lives more regularly again.
One common theme is the struggle against the darkness. It could be an internal struggle within a character or a more external battle against some dark force. For example, in many fanfics, the protagonist has to overcome their own fears which are often symbolized by the 'darkness'.
Some fanfictions may use the 'hello darkness my old friend' concept in a more metaphorical way. For instance, it could be about a character's relationship with an old, perhaps not so positive, part of their past that resurfaces. This could be an old habit, an old acquaintance that brings back memories, or an old way of thinking that they thought they had left behind but now has to deal with again.
In a death of a friend story, one common theme is regret. You might regret not spending more time with them or not telling them how much they meant to you. Nostalgia for the times when they were alive is also a big theme. And often, there is a theme of growth too. The person left behind might grow in their understanding of life and death through this experience.
You could try asking your friend directly where you might find it or if they remember any details that could help.
One common theme is mutual support. Just like in the story I mentioned before, they are there for each other in difficult times. Another theme is shared interests. For instance, if they both like music, they might go to concerts together. Also, loyalty is a big theme. No matter what others say or do, they stay true to their friendship.
One common theme could be the rediscovery of love later in life. For example, an old woman might find love again after the loss of a spouse, showing that it's never too late for new beginnings. Another theme could be the power of memories in love. An old woman may have a love story filled with memories of a long - past relationship that still holds a special place in her heart.
One common theme is power dynamics. The old woman holds a position of power within the story's context, whether it's in a family or a community. Another theme could be tradition. She is often the keeper of traditions and enforces them.
One common theme is confusion. The old guy in the meme might have a bewildered look on his face. Another is grumpiness, like an old man frowning. And there could also be a theme of old - fashioned values, where the old guy is doing something in an old - school way that seems funny in modern context.
One common theme is betrayal. Like when a friend reveals your secrets to others. Another is selfishness, such as a friend who always takes but never gives. For instance, they might borrow money and never pay it back.
One common theme is loneliness. Often, the character who has an invisible friend is lonely in some way, like they may be an only child or new in a place. Another theme is imagination. It shows how a child's imagination can create a whole new world and a friend within it.