Buddha Dharma means the teachings of Buddha. According to traditional views, there are 84,000 Dharma!
This is the result of Buddha teaching humans on Earth, devas in heaven and nagas in the naga realm. Since the audiences are individuals with unique mentality, Buddha taught them according to their inclination and readiness.
While some people are keen to learn about enlightenment, others are only concerned about prolonging their life or having a successful career. In one of the famous sermons,Buddha used fire as an analogy when he taught a group of fire-worshippers.
To know Buddha, we need to know Dharma.
To experience Buddha, we need to practice Dharma.
To become Buddha, we have to be in one with Dharma