This is an incredible film, and I highly encourage anyone that didnt like it, to watch it again, and then watch all the special features that come with it. It is truly a piece of art, and I think thats how the film should be viewed.
I was completely blown away when I watched the behind the scenes footage on how it was made. All those space sequences where the character is moving towards death/life were made by compositing natural and chemical reactions taking place in petri dishes onto the footage. Peter Parks who is a legendary macro photography did some very innovative work on the film. Spending many hours setting off colorful chemical reactions and filming them in Macro.
I must say I struggle to put the film into descriptive words, but for me it was about a man dealing with attachment and loss, it was about the constant motion of life and death that we ultimately have no control over. It was about the glorious realization that Death is not the end, but the beginning. And that if we can truly let go, we will realise that to be a part of this cycle is to be a part of the most beautiful experience of them all.
Aranofsky put into pictures a very deep understanding of the cycles of life and death. I would have thought anyone on here would appreciate it for this reason.