The following questions are based on four passages in English to test the comprehension of English language. Read each passage and answer the questions.
The Yoga system is divided into two principal parts—Hatha and Raja Yoga. Hatha Yoga deals principally with the physiological part of man with a view to establish his health and train his will. The processes prescribed to arrive at this end are so difficult that only a few resolute souls go through all the stages of its practice. Many have failed and some have died in the attempt. It is therefore strongly denounced by all the philosophers. The most illustrious Shankaracharya has remarked in his treatise called Aparokshanubhuti that “the system of Hatha Yoga was intended for those whose worldly desires are not pacified or uprooted.”
Which one of the following, if true, most substantially strengthens the idea given in the passage?