Final answer:
The secret of happiness, according to the old man in 'The Alchemist', is helping others by finding inner peace through assisting and supporting others.
Step-by-step explanation:
The secret of happiness, according to the old man in 'The Alchemist', is helping others.
Material wealth and following one's dreams are not the ultimate source of happiness, but rather, genuine happiness comes from inner peace achieved through helping others.
The old man explains that when we assist and support others, we not only alleviate their suffering but also find a path to moving beyond our own suffering.