Reasons for practice

The Buddha Gotama said that a person may practice for their own benefit, for the benefit of others, for both the benefit of themselves and others, or neither for their own benefit nor for that of others.  However, regardless of the initial reasons for practice, a person comes by degrees to practice for the benefit of themselves and others.  Just as milk naturally separates into cream if left alone, just as butter naturally arises from churning milk, the best of a person's nature naturally arises through practice - whether that practice is undertaken selfishly and alone or for the betterment of others with others.