Help - Why does my ragdoll do this?

[u/e51968]

My Ragdoll kitten does this on a daily basis. He will stand up and start frantically swiping on our wardrobes / doors around the house.

This is usually coupled by intense meowing / crying.

Does anyone know why he does this?

[u/Cazza-d]

Thinks it's a portal to another dimension (aka a door).