Sakyamuni indicates the path to true happiness by first pointing out that suffering in this world surely exists. Then in the last verses of Chapter 3 he gives the remedy.

I am the father of this world, the best of the sages. All living beings are my children. They are deeply attached to the pleasures of the world. They lack wisdom. The triple world is not peaceful. It is like the burning house. It is full of sufferings. It is dreadful. There are always the sufferings of birth, old age, disease, and death. They are like flames raging endlessly. I have already left the burning house of the triple world. I am tranquil and peaceful in a bower in the forest. This triple world is my property. All living beings in it are my children. There are many sufferings in this world. Only I can save all living beings.

It is based on this passage that Nichiren formulated his doctrine of the three virtues of the Buddha: he is our master, our teacher, and our parent.