an example in life: it's extremely torturing to have chicken pox for an adult. that's so painful that it's normal to cry but there're always 2 sides of a coin e.g. it's still good to have got infected before getting pregnant 焉知非福's true for every thing
>>爭取心靈解放，這是最重要的任務。天堂與地獄，懸乎一念，其理在此。 心靈解放 is genuine freedom otherwise, any place, even a palace or a forest can be a prison think about those people who pass away in sorrow, anger, dissatisfaction, etc, how do they look?
