This paper attempted to lay important underpinnings about the possible convergence of indigenous education into the mainstream education in the lens of sustainable development.  It presented the diverging and converging aspects of indigenous education and mainstream education in connection to their directions in achieving sustainability.  The paper underscored the implications of the clash of the two in the different facets of education in the context of the Philippine educational system.  Although this paper can contribute a valuable and significant contribution to the literature on fusing the mainstream and indigenous education, it only represents a minute contribution in the perspective of an educator. Rather than filling the gap in the literature – a gap far too wide to fill – it is hope that this paper may offer a platform for further research opportunities.