Originally Posted by
PocketfulofKryptonite
Donald Blake was worthy, that is not being disputed. He went to Norway after Odin placed a suggestion in his mind, not being disputed. He could only become Thor again after he'd lived well and charitably, overcoming his disability and working as a doctor, not being disputed. However it was the cane that released Thor from his mortal shell, it was the key to unlocking that aspect of him and so that it may have always contained an aspect of Thor that was key to becoming himself again is what I'm suggesting.