The mind is the ultimate source
of all happiness and misery. For
there to be happiness in the
world, the mind of an individual
must first be at peace and happy.
Individual happiness is conducive
to the happiness of society, while
the happiness of society means
happiness of the nation. It is on
the happiness of nations that the
happiness of this world is built.
Here we must use the image of a
net. Imagine the whole universe
as an immense net and each
being as a single knot in this net.
If we disturb one knot, the whole
net is shaken. So each individual
must be happy to keep the world
happy.