Object and Antimatter

'If its not real
You can't hold it in your hand
You can't feel it with your heart
And I won't believe it
But if it's true
You can see it with your eyes
Oh, even in the dark
And that's where I want to be, Yeah.'

-Brick by brick, Paramore

This song inspired me to think about the nature of Antimatter, and what it means to each individual. The accepted definition of Antimatter is a particle matter that has the same mass as particles of ordinary matter but has an opposite charge. For me, Antimatter is an unstable entity; it could take the form of a memory, an emotion or a idea. An object, traditionally, is anything that is visible or tangible and is in a relatively stable form. In turn, this meaning could be subverted. What qualifies an object?