What does it mean to have an empty life?

I have plenty to be happy about.

I have much for which to be thankful.

I have great friends. I have a wonderful family.

I have known both love and heartbreak.

I have experienced joy, anger, sadness, fear, boredom and laughter.

I have accomplished and I have failed.

I have learned much and look forward to learning much more.

I have known both arrogant certainty and intense doubt.

What am I missing?

Hearts

and so it was

that when i saw

that what she does

is give to me

her heart so free

the wetness flowed

from bright blue eyes

and seemed to glow

as tears ran down

i did not frown

as her smile shone

and my heart sang

like a new dawn

her hand in mine

our hearts entwined