One is called the pravṛtti-mārga, or the path of sense enjoyment, and the other is called the nivṛtti-mārga, or the path of renunciation. The path of enjoyment is inferior, and the path of sacrifice for the supreme cause is superior. The material existence of the living being is a diseased condition of actual life. Actual life is spiritual existence, or brahma-bhūta existence, where life is eternal, blissful and full of knowledge. Material existence is temporary, illusory and full of miseries. There is no happiness at all. There is just the futile attempt to get rid of the miseries, and temporary cessation of misery is falsely called happiness. Therefore, the path of progressive material enjoyment, which is temporary, miserable and illusory, is inferior. But devotional service to the Supreme Lord, which leads one to eternal, blissful and all-cognizant life, is called the superior quality of occupation. This is sometimes polluted when mixed with the inferior quality. For example, adoption of devotional service for material gain is certainly an obstruction to the progressive path of renunciation. Renunciation or abnegation for ultimate good is certainly a better occupation than enjoyment in the diseased condition of life. Such enjoyment only aggravates the symptoms of disease and increases its duration. Therefore devotional service to the Lord must be pure in quality, i.e., without the least desire for material enjoyment. One should, therefore, accept the superior quality of occupation in the form of the devotional service of the Lord without any tinge of unnecessary desire, fruitive action and philosophical speculation. This alone can lead one to perpetual solace in His service.