What is owner of unit and triggering units?

Game Editor Help
1

When i saw owner of unit and triggering units they confuse me i thought that owner of unit can work more then triggering units so what is the difference between Triggering Unit And Owner Of Unit

2

Nothing really just to specify whats what

3

Owner of a unit is the unit own the other unit(for example:the player is the owner of a unit and the triggering unit is the unit)

4

honestly i use owner of triggering unit for almost everything like changing skin or giving item or like giving a unit attributes (EXP) Example:(if:owner of(triggering unit) name == KekerJoestar Then Do: change (triggering unit)´s unit to (Unit Name)

5

@RagDev yes,the owner of the unit and the unit was so important for players