What's the "Shadow Realm"?

'''The "Shadow Realm" is a realm where everything is nothing, nothing will ever happen, and everything is happening at the same time... It's a void, it's a infinite space of whatever the user wants it to be. They can access it anytime, only allowing the people they want to be in it. It's kind of like controlling your own dreams.'''

'''The Shadow Realm is a safe-space for users to retreat away into. And just because they can make it so that someone cannot enter, people with dimensional abilities can break through it. Sometimes time anomalies will support the user by telling them what to expect from so and so.'''