I couldn't count the number of times the phrase "muito obrigado" was used on a daily basis by locals and eventually by me. At times, the usage of the informal "valeu" as an expression of gratitude started to add up as well.

One of the biggest lessons I took back on this trip was an appreciation of everything that , comparative to a lot of people in Rio , makes my life comfortable . In spite of the daily challenges that a number of them face, subsisting on a monthly minimum wage of 400 Reais ( US $ 180.00 ) or even less, these are some of the happiest people on earth. A lot of Cariocas ( Rio de Janeiro residents ) believe that they do live in the Cidade Maravilhosa   ( marvelous city ), with an awesome quality of life ( a rhythm & pace all its own plus samba, bossa nova , MPB ( Musica Popular Brasileiro & futbol @ Maracana Stadium , hah ). So what's not to be thankful for. As one of my new friend's tatuagem ( tattoo ) declared on his back, " Deus e Fiel " , i.e. : I exist by the grace of God & Faith.
This Carioca was the true essence of "brincadeira" or fun; one who totally celebrated the kid in him every chance & moment he had .

Very yogic in outlook. Jennifer Jordans's online article " Yoga & Gratitude " encapsulates it as : " Gratitude is a way of deeply appreciating the full spectrum of life - the good and the bad, the joy & the suffering. Gratitude teaches people to gain peace of mind. So does yoga. "

Another lesson learned was to let go of any expectations of reciprocation , as reciprocation & appreciation came so naturally in Rio ; there was no necessity to even think about it.