Sentence:  [...] but the indications thus outlined of this improvement seem to me but foreshadowings of still better things to come — nay, rather are they <WSD>forelights</WSD> — <WSD>Forelights</WSD> Of A More Radiant Health That Is To Be. 
Meaning of the word marked with <WSD> tags:  A forward positioned or forward facing light, especially one used to guide, direct, or navigate; beacon;  a signal; indicator