Acharya Prashant explains that truth is timeless and beyond the constraints of time, meaning it can never become old or outdated. While the speaker or the physical form of a teacher like J. Krishnamurti may belong to a specific time, the truth they convey remains eternal. He notes that if the Earth continues to exist, people will still resonate with these truths thousands of years from now, just as they do today. The methods or means used to point toward the truth may change or become obsolete based on the evolving needs of the individual, but the ultimate destination or goal remains constant across centuries.