What was the goal of Ben Franklin's kite?

Question: What was the goal of Ben Franklin's kite!?

I understand he wanted to prove lightning was electricity!.

But where did he want the electricity to go!? to the key!? so like, he wanted the electricity to go down the string and to the key!? or from the string through him and to the ground, what!?
Www@QuestionHome@Com

Best Answer - Chosen by Asker:

He wanted to prove that electricity was attracted to metal, so he wanted lighting to strike the key!.Www@QuestionHome@Com