A brief glance at Buddhist history will show what is involved. Original Buddhism was founded on such notions as the difference between samsara (the source of suffering) and nirvana (the source of Enlightenment or Awakening); the three marks of samsaric existence; that is dukkha (suffering), anicca (impermanence), and anatta (no-self); and the Four Noble Truths: (1) life as lived in samsara is suffering, (2) the cause of this suffering is craving or grasping, (3) to end craving or grasping is to end suffering, and (4) there is a way to end grasping, namely, the eightfold way—right view, right intention, right speech, right actions, right livelihood, right effort, right mindfulness, and right unitive awareness.
