What did Philip K. Dick think of Blade Runner?

Philip K. Dick died a few months before before Blade Runner (adapted from his story Do Androids Dream of Electric Sheep?) was released, but he saw a segment about the film on television before he passed away.

In a letter, he described how much he loved it:

I can only say that I did not know that a work of mine or a set of ideas of mine could be escalated into such stunning dimensions. My life and creative work are justified and completed by Blade Runner.

He believed the film would revolutionize science fiction, and he was almost certainly right (via)