Being grateful, one should support one’s parents and attend to them filially. Being righteous, the senior and the junior should be empathetic towards each other. Being forbearing, the superior and the inferior should get along harmoniously. Being tolerant, no quarrel or conflict shall arise from hostility. If we can persevere like lighting a fire from drilling wood, then red lotus (the Buddha-nature) will definitely rise from the black mire (the deluded state).

(The Platform Sutra)