Right understanding is the way that we see the life with its real nature. It is life is suffering. Born is suffering , Old is suffering, Sickness is suffering and Dead is suffering. Life doesn’t like we want. It is impermanence, not self and suffering. The one that we love but not meet. The one that we hate is always beside…fake happiness and not lasting.
The causes of suffering is craving, like and greedy.
The way to eradicate suffering is give up cling, craving, like and greedy.
The path lead to enlightenment to end suffering is right understanding, right thought, right speech, right action, right livelihood, right effort, right mindfulness, right concentration.