Vesak, also known as Buddha Purnima or Buddha Day, is the highest Buddhist holiday and is committed on May 10, 2017, the full moon of the fourth month according to the lunisolar calendar. Due to the Gregorian solar calendar the exact date varies from year to year. On Vesak Buddhists celebrate the birth, the awakening, or enlightenment, and the death of Buddha Siddhartha Gautama. Various Buddhist traditions and faiths celebrate Vesak on different dates. Partially separate holiday are held for each of Buddha's life stages.
Due to the various Buddhist traditions, Vesak, which has its origins in the Theravada tradition, is used by followers of different Buddhist faiths worldwide to deliberately look for common ground and thus to strengthen cohesion. The festivities take place in the form of puja ceremonies, in with pictures of Buddha, lights and flags decorated streets. These worship ceremonies are a way for the faithful followers to get close to Buddha by prayer, singing and meditating.