The soul-knowledge can recognize the one who is grieving as his brother. Once the soul-knowledge becomes very dull, due to the delusion of ignorance, it is unable to discern. The mind is the mirror of the soul. The mind and other limbs have become dull and do not reflect the reality. Therefore, it should be understood that even though there was brotherhood, there was no compassion. Thus, it is known that a person who is compassionate is one who has clear knowledge and soul-vision.