'Plain life high thought' means that our life should be simple and high valued but we should not limit our thinking and thoughts. Our life may be simple but our thoughts should always be high. If our thoughts are limited to thinking only about our pleasures, then there will be a sense of selfishness in us. We can never think of the happiness and well-being of others other than ourselves and what is this mean regarding our life? that is, we should simplify our life.  

We should also spend time with it, while not restricting your thinking to everyday activities around you, think about your life as well as the surrounding changes. 
 

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However, these days people limit their thinking to a luxurious life, which gives them happiness. Nowadays people have become so accustomed to the pleasures that they cannot even think of living a simple life. 

'Plain Life, High Thought' - This policy advises man to limit his needs and desires as they have no end, they will never be satisfied, if we fulfill our desire because there is no end to our desire then we are on an endless trial of trying out with no result. We keep on increasing our desires every hour, we do not get satisfaction after attaining anything, but after the attainment of anything, our greed of mind increases even more. 

On the other hand, there are some people who feel that they should just focus on their needs and not run after any other materialistic things. There are also those who lead simple lives. We should be the ones who lead simple lives and be satisfied. 

The special needs to buy goods and focus on becoming better human beings through their deeds is the very human nature and not just like others lecturing on how to live a comfortable life, they always take care of the people around them and help them grow. 

They try their best to improve the environment, also engage in different types of activities and spend a good time with their loved ones. This is all because they believe in living plain life but with high thoughts.