On 21 September 2016, Assoc. Prof. Farish A. Noor, a historian and political scientist from Rajaratnam School of International Studies (RSIS), Nanyang Technological University, Singapore, delivered his idea on Southeast Asia in front of many students at Faculty of Social and Political Sciences, Universitas Gadjah Mada, Yogyakarta. Three terms to be underlined are about construction, dialectics, and the politics of identity. Along with the historical process and dynamic in the region, he looks up the importance of Southeast Asia as a constructive concept which highly associated with the legacy of colonialism. It remains necessary to critically foresee the idea of Southeast Asia amidst the wave of modernity in the region.