Okay kiddo, let me try to explain what the "arms of assumption" means.
When people talk about "arms" in this context, they're not talking about your actual arms that you use to hug and high-five. They're talking about symbols or pictures that represent something.
In Christianity, the "arms of assumption" refer to a picture or image that shows Jesus ascending or being lifted up into heaven. This is based on a story in the Bible where Jesus' disciples watched him go up to heaven after he had been resurrected.
The picture usually shows Jesus with his hands raised up in the air, as if he's being lifted or carried away by an invisible force. This symbolizes his journey to heaven to be with God.
So, the "arms of assumption" aren't really arms at all, but rather a picture or symbol of Jesus going up to heaven after his resurrection. I hope that helps you understand!