With you on the pop spirituality... the posted article was semi-neurotic in tone. My own decade-long international itinerance leaves no option for 'stuff'. I used to cycle tour a lot, which is a great way to get stuff-conscious (eg. slogging it up a hill at 2000m... it really "weighs" on you!). These days I nearly always travel with a 20 liter backpack out of minimalist habit.