Can the past change? It sounds incredible, but scientists are debating exactly this, with various theories ranging from quantum mechanics to the many-worlds interpretation. If it could, how would it appear to us? The internet is buzzing with wild ideas, so it's time to go over where they originated, and consider in detail what exactly might be causing it.
Universe
As is it wasn't mysterious enough, the Mandela Effect's similarity to the word Mandala is also seen by many as significant. This is because the word is a Sanskrit term meaning "circle", and it's symbol represents the universe. Taken literally, the "Manda" is a palace, the "La" is the center and taken together it describes the abode of the deity. In Hinduism and Buddhism it features as a spiritual symbol used in certain rituals. Whilst described generally as a repeating, petal like structure similar to a flower, like a snowflake each individual instance can take a unique form.
Sometimes the center of a Mandala actually shows a palace, which has 4 doorways pointing towards the four corners of the earth. It is protected by several inner circles, each of which symbolise a particular quality such as love, wisdom, devotion or purity for example. There can be other symbols at the heart of the Mandala too, including a lightning bolt for the male and a bell for the female.