Board Thread:General Discussion/@comment-27019273-20150926073705/@comment-27159736-20150926182614

Well I may not be the smartest user on the wikia but I'll give it a shot.

When Dipper first arrives at the patten is smooth and basic while the scene of the animals attacking the guests the floor is alot more pattern wise and intertwining or crossing into each other.

The goddess symbolism may relate to the northwest power over Gravity Falls since they are the richest family and are worshipped for being the supposed founders of the town so they practically own the town similar to how a god is worshipped for creating the world.

Northwest Mansion Mystery is about Pacifica coming to reality of her family's true personality. In media when a god or goddess is under a specific emotion then the enviroment changes to that emotion for example if they are angry then there is thunder and lightning on the planet.

Pacifica is going under an emotional rollercoaster. At the start she was content with Dipper removing the ghost but when the ghost attacks she angry and in a panic so the floor pattern changes to match her personality or to match the scene. like at the end the pattern is smooth while when the ghost attacked the pattern was crossing into each other.

The patterns could symbolise Pacifca's emotions during the episode. I can compare it the Lord Of The Flies where the character Simon has the enviroment match his personality or fit his emotions.

I am sorry if this isn't the type of answer your looking for but this what I think of the goddess symbolism.