[The human (adam) – who is the ‘light’ of a candle – there shines (nahir) within him the Written Torah, and the soul – which is ‘candle’ – there shines within it ‘precept’ (mitzvah). And when light and candle do not shine within it, it is said of the soul: (Song. 1:6) Do not look upon me for I am blackened, and it is stated of the person: (Is. 50:3) I shall dress the heavens with darkeness...]
And what is NeR (candle)? An acronym of Naphsha and Ruḥa: Nun נ is naphsha (animating-soul), Reish ר is ruḥa (spirit).