A happy Tibetan monk in red robe is washing his feet by a river in Tibet.  [Photo by Mirenda/China Tibet Online]

A little monk smiles when debating the Buddhist scriptures in the Sera Monastery, one of the three celebrated monasteries in Lhasa along with the Drepung Monastery and the Ganden Monastery in Lhasa, capital city of Tibet. Lhasa topped an annual survey of residents' sense of happiness in Chinese cities.  [Photo by Mirenda/China Tibet Online] 

A little monk in crimson robe wears a big smile when waiting for a Buddhist scriptures test at the Sagya Monastery, a renowned monastery of the Sagya Sect, a branch of Tibetan Buddhism in Tibet. [Photo by Mirenda/China Tibet Online]

An enderly Tibetan lama smiles in the nursing home of the Ganden Monastery in Lhasa, one of the three celebrated monasteries in Lhasa along with the Drepung Monastery and the Sera Monastery in Lhasa, capital city of Tibet. Lhasa, the city of sunlight, topped an annual survey of residents' sense of happiness in Chinese cities. [Photo by Mirenda/China Tibet Online]

A lama in crimson robe smiles happily under the sunshine in Lhasa, capital city of Tibet. Lhasa, the city of sunlight, topped an annual survey of residents' sense of happiness in Chinese cities. [Photo by Mirenda/China Tibet Online]

A little monk wears a big smile when debating the Buddhist scriptures in the Sera Monastery, one of the three celebrated monasteries in Lhasa along with the Drepung Monastery and the Ganden Monastery in Lhasa, capital city of Tibet. Lhasa, the city of sunlight, topped an annual survey of residents' sense of happiness in Chinese cities. [Photo by Mirenda/China Tibet Online]

A happy monk in the Sera Monastery, one of the three celebrated monasteries in Lhasa along with the Drepung Monastery and the Ganden Monastery in Lhasa, capital city of Tibet. Lhasa, the city of sunlight, topped an annual survey of residents' sense of happiness in Chinese cities. [Photo by Mirenda/China Tibet Online]