From Di ~

The purpose of mediumship is to bring proof of life after death, and bring messages
of love from those in spirit.  As I learn to make these connections, my greatest desire
is that a message will make a difference in your life.
I have studied mediumship for eight years.

I have a strong desire to bring proof of life after death.

I have a strong code of ethics about this work.

I do not give negative information - only proof of live after death.

I only bring evidence of contact with your loved ones as confirmation
that there is life after death.
I've brought through many people who were and are the love of a lifetime to someone.  I
assure you that moving on doesn't have to mean letting go.  Those who have passed still
sit with you at the kitchen table, and they often sit with and touch the living loved one at
bedtime, whether it's through dreams or continuing to lie on their side of the bed.  Because
this was their routine in life, they often continue it even after death.  They do this out of
love and for the comfort they feel they still bring the living.  Also, the living provide comfort
for those who have passed when we mention their name, talk to them directly, stare at their
picture, and include them in our lives.  The deceased don't exactly cry, but I have felt their
heart ache for the living person they're trying to reach.  It pains them to see you cry, so
they will try harder to reach out to you through others, signs, or dreams until you
acknowledge their presence in words or just by thinking about them --the "I know you're
there" being screamed in your head and your heart.  
An Excerpt From:

We Are Their Heaven: Why the Dead Never Leave Us
By Allison DuBois