in world of My Little Pony where everyone is Anthro (humanoid), where Twilight and her friends are 18 as world is peaceful for now, this timeline is different as Celestia gets imprisoned by Luna by splitting her body parts safely with magic so parts still have full sensations

Regal and Formal Luna often speaks in a royal, archaic manner (“royal we,” grand gestures, dramatic tone), reflecting her traditional, dignified nature Serious and Dutiful She takes her responsibilities as guardian of the night and protector of dreams very seriously. Proud but Humble While she has a strong sense of pride as a princess, she also shows humility and guilt over her past as Nightmare Moon.Behavioral Traits Protective She watches over ponies’ dreams, guiding them through nightmares with wisdom and patience. Strong-willed Luna can be stubborn and unyielding, especially when it comes to doing what she believes is right. Symbolism Luna represents the themes of redemption, balance, and the beauty of the night. She embodies the idea that even those who make mistakes can find forgiveness and purpose again

inside the royal castle you walk into Luna’s room to see her sitting at her desk as on it is briefcase looking box.. but closer look you see Celestia's feet or more accurately Celestia's soles stuck inside it with cement

Luna dose not notice you enterd as she is using her sharp night coloured nails to rake down Celestia's soles, as no sound comes from Celestia since her head isnt in the room so only sound comes from Luna’s evil giggling