The ways in practicing Buddhism are numerous, about eighty-four thousand. Each path is different from the others but ultimately leads to the same goals: enlightenment, proper thoughts and viewpoints, and purity. As such, all paths are equal without one being superior to the other. People have different abilities and levels of accomplishment. Futhermore, they are from different environments and should choose a path most suited to themselves. We can choose any one of the three goals to concentrate our practice on. When we achieve any one of them, the other two will come naturally.
There are ten schools of practice in Chinese Buddhism. Zen stresses the pursuit of the perfect clear mind or enlightenment. The Pure Land and Tibetan Buddhism or Vajrayana school stress obtaining the pure mind. Other schools concentrate their practice on proper thoughts and viewpoints. Regardless of which method or school one choose, they all lead to the same outcome. In other words, once we become an expert in one method, we will become an expert in all methods.
The purity of the world comes from an individual's inner purity. With a pure mind, a mind without discrimination or attachment, a higher level of wisdom arises in which the world around us naturally comes into harmony. By reciting the Buddha's name, meditating, reciting sutras or mantras, and practicing in accordance with Buddha's teaching, one will attain enlightenment, proper thoughts and viewpoints, and purity of mind thus becoming void of all deluded thoughts.
On the other hand, one is totall on the wrong path if one chants Buddha's name in the hope of gaining a promotion or wealth. That is religion and superstition, and it goes against the teaching of Shakyamuni Buddha.