Is This Goodbye?

How will it be like when we die?
How will we see this world on our last day?
With our last breath?
What will be our last thought?
What will be our lingering regret?
What will we take away?
What will we leave behind?
Will we be thought of?
Will we be missed?
Will we miss this world?
Will we see each other again?
Will I hear you again?
Will I be able to call you again?
Is this goodbye?