If we want to take 'happiness and fulfilment' concepts up a notch, we have to think enchantment. Yes, enchantment; that electrically awesome connection between human, divine and all things 'great and small' (mainly small).
The first 50 years of our life is perhaps a 'training regime' to prepare us for the journey 'From 50 to Enchantment'.
Maybe we all need to consider starting this journey right now ... Before it's too late ... Yep, before we pop our clogs! (All profit from all sales goes directly to The Hornsby Ku-ring-gai Women's Shelter)