A Tibetan monk from the Drepung Loseling monastery collects coloured sand before creating a religious diagram or sand Mandala at the Teatro del Pueblo theater in Mexico City October 25, 2013. After building the Mandala, the monks will distribute the sand to the audience as a blessing and a symbolic gesture to represent the ephemeral nature of existence and to encourage detachment in life. The Drepung Loseling monastery was founded in 1416 but was later relocated in 1959 to Karnataka State, south India, after the Chinese invasion of Tibet. REUTERS/Edgard Garrido (MEXICO - Tags: RELIGION SOCIETY)