Poverty is involuntary and debilitating, whereas simplicity is voluntary and enabling.
It is very misleading to equate simplicity with poverty, even if some spiritual traditions have advocated a life of extreme renunciation. A life of conscious simplicity can have both a beauty and a functional integrity that elevates the human spirit.
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Adopting a simple life doesn't require moving into rural areas. In fact, the majority of persons choosing a life of conscious simplicity live in cities and suburbs.
It is much more accurate to describe this as a "make the most of wherever you are" movement, adapting ourselves creatively to a rapidly changing world in the context of big cities and suburbs.
The simple life is sometimes viewed as an approach to living that advocates a barren plainness and denies the value of beauty and aesthetics. But rather than a denial of beauty, simplicity liberates the aesthetic sense by freeing things from artificial burdens.
... you can use on any area of your life, and in fact on your life as a whole:
... for improving performance: