This film has many messages but I'll digress, if you'll forgive me for this, into a simple interpretation of the narrative:
What does it mean to be human? What if we could exist in our 'perfect' states and live for 70+ years as the perfect young adults we all love? To feast and laugh and love and fuck and rejoice in existence as if life was a beach party from beginning to end?
Could it be any better?
Yet, heroism presupposes a significant loss else it's an abbreviation. For this I couldn't connect but the gist was enough to parlay the message of loss and sacrifice and if it didn't have the trite payload of that illusory concept of the selfless gesture then I'd have spread it on toast. But still Id've fed it to the pet.