Key Aspects of the Bull/Dharma Symbolism:
The Four Pillars: According to the Bhagavata Purana, the four legs are compassion, cleanliness, austerity, and truthfulness. Another interpretation includes tapas (austerity), daya (mercy), shauch (cleanliness), and satya (truthfulness).
Nandi and Shiva: Nandi, the sacred bull, is the vahana (vehicle) of Lord Shiva, representing the individual soul (Jeevatma) and devotion.
Symbol of Virtue: The bull represents stability, strength, and the adherence to righteous living.