This Sahā world, Sahā is a Sanskrit word, translated as "bearable", which means that this world is painful, but all living beings can endure it. Why is it called suffering?
All dharmas in this world are tainted dharmas and are not pure, so they are very painful. Even happiness is the cause of suffering. There is no real happiness, so it is called bearable.
For example, wearing new clothes is joyful, but being stained by dust causes trouble. What people are most happy about is getting rich, but no matter how much wealth they get, they cannot take it with them when they die.
When you are alive, even a penny is clearly counted. When you don't get the money, you try to find ways to get it. If you don't get it, it is suffering to be greedy in your heart. When you have got it, you are afraid of losing it. This is all suffering, but you don't feel bitter.
Worrying about gain and loss, fearing not getting it, not being able to take a penny with you when you die, you say this is suffering? Or happiness?
These two things are what everyone in the world is happy about. All happiness is the cause of suffering, but you haven't realized it yet, so this world is called "bearable".
