The Considered Opinion

The traces of the treasure inside the object indicate that the treasure must have been in the pouch for over thousands of years and the treasure should be in an irregular shape.

 

The treasure and the object could be found by the emperor accidentally OR they could have been given by an alien OR the emperor was actually an alien himself!!!

 

Based on the test result of the dust, a possible assumption is that the treasure and/or the pouch have a magical power which can take human beings into the sea.

 

Apart from travellig in the sea, the magical power might have other functions like providing protection or even killing. The emperor might have used this object and the treasure inside it to fight against his enemy to:

1.protect himself/country

2.become the emperor!