I can never say goodbye

How can I let someone so precious go?
How can I tell you all I need you to know? 

How can I go through my days without you here? 
How can I share with you all that I love, all that I fear? 

Luckily for me, you promised me one thing...
You would be here beside me, and would always bring...

Hope to my heart and comfort to my soul,
Peas in a pod you and I, two halves one whole. 

You mean the world to me including the sun and the moon,
I will never say goodbye, just a little 'see you soon'.