This quote metaphorically portrays the truth as a powerful and self-sustaining force. "The truth is like a lion" suggests that truth, like a lion, possesses inherent strength and authority. Lions are known as apex predators that don't need protection, and similarly, the truth doesn't require defense.
The phrase "you don't have to defend it, let it loose, it will defend itself" underscores the idea that when the truth is exposed or revealed, it can stand on its own merits. Much like a lion can protect itself in the wild, the truth's authenticity and validity naturally emerge and become apparent to those who encounter it.
In a broader sense, the quote encourages individuals to trust in the power of truth and its ability to withstand scrutiny and challenge. It advocates for honesty and transparency, suggesting that if the truth is allowed to shine without distortion or manipulation, it will ultimately prevail and make its impact felt.