Alter ego of Pi, the Island and the Tiger's glance

Rating: 9/10 (2 January 2013)

I firmly believe second story was the right one. The animals were the human beings and the tiger was Pi's alter ego. During the journey he mentions that it's fear that kept him being awake and let him struggle till the very end. Therefore I think the fear generated his alter ego which made him stronger on the way to survival.
The Island resembles his state of mind. The lotus is nothing but the memory of the subtle dance that revealed the beauty and grace of his girlfriend. He was on the verge of madness and death but it was the willingness to live that kept him going on.
Why didn't the tiger look back? I think that's because again the tiger was his alter ego which gradually became himself. There was no need to for the tiger to say goodbye as the tiger is he himself.
Overall I think it's a great movie which can be interpreted in various ways. It's you to decide what story you prefer.