It seems that the extent of ones fear.. can determine how much we will hold onto another external person or thing.
Some hold onto dogma
Some hold onto lovers
Some hold onto teachers
Some hold onto possessions
But all these things will change.. and in fact can not be held beyond their sell by date.
Can you hold onto to anything ?
Nothing in the material world is constant and lasting, so if you are after practical things in life, other that just dreams, the answer is no.
If ease in life is something you desire, practicing letting go would be a good thing.
If you let go of everything.. what you are left with is you.
Were you looking for something important ?