primaeval
/praɪˈmiːvl/You use primaeval to describe things that belong to a very early period in the history of the world. 原始的
adjective [原级] 原始的；远古的（等于 primeval）
While doing that you can hum mantra OM because OM is the primaeval sound of Light and its resonance will restore harmony most effectively. 因为OM是代表圣光的咒音，而且是最能让人回复平静的声音。
后缀: al
【adjective】 表示具有某种性质的 - indicating pertaining to or characterized by
原词: primaeval
是通过后缀 【al】 构成的派生词
