Hi @Cahlen and @jin-out ,
I think both of you are right,
The confusion come in the owner definition I think,

• If you take I as being, the rider of the physical body, you don't own the body (the earth own the body) therefore anything I the material world would never be of your posession.
  At best you are Keeper of this matter. Certain atoms arengments are of your reponsibility.
• If you take I as being the physical body having an experience here on earth, you can own matter the exact way you described.

And I think both views are true.
Because having an experiment in the matter but not being the matter.
It's both sides of the same coin, go all materialistic is wrong go all spiritual is wrong too, you need balance.