Commentary by Hazrat Inayat Khan:

Opinion is an outcome of mind. It is an outburst of its reasoning and judging faculty. And so, according to the evolution of a particular mind, its opinion is. Opinions clash when two people of different stages of evolution express themselves. Therefore the wise are more reluctant to express their opinion, whereas for the unwise it is easy. A simpleton is only too glad to express his opinion uninvited.
Everyone, consciously or unconsciously, is striving after spiritual attainment. Sometimes he does not take the same way as we do, sometimes his point of view and his method differ, and sometimes one person attains to spiritual realization much sooner than another. It may be reached in a day, and another person may have striven for it all his life and yet not have attained to it. What determines it? It is the evolution of a particular soul.