In ancient times man's awareness of time and space led to the realization that at the end of his lifespan, no matter how successful that life has been, there awaits death. This sense of impending doom spurred him to seek ways of transcending the limits of time and space.
遠古時代，原始人對於時間的覺醒、空間的憧憬，使他們在經濟生活之餘，預見生命的死亡，這一危機感促使他們努力尋求如何超越時空的大限。