These threads also exist:
http://originaltrilogy.com/topic/Why-Leia-remembers-Padme-but-Luke-doesnt/id/3834/page/1
http://originaltrilogy.com/topic/Could-Force-Vision-explain-how-Leia-knows-what-her-mother-looks-like-Discussion/id/47742
These threads also exist:
http://originaltrilogy.com/topic/Why-Leia-remembers-Padme-but-Luke-doesnt/id/3834/page/1
http://originaltrilogy.com/topic/Could-Force-Vision-explain-how-Leia-knows-what-her-mother-looks-like-Discussion/id/47742