For the sake of clarity, here is the definition found for the term Frith:
From Webster's Revised Unabridged Dictionary :
Frith: \Frith\, n. [OE. frith peace, protection, land inclosed for hunting, park, forest, AS. fri? peace; akin to freno? peace, protection, asylum, G. friede peace, Icel. fri?r, and from the root of E. free, friend. See Free a., and cf.Affray, Defray.] 1. A forest; a woody place. [Obs.] --Drayton.
As seen in the above definition, Frith has implications of an environment of peace, protection, and freedom; such an environment is beneficial for growth and evolution.