Just as raw mercury is very harmful to eat but when treated and processed, it becomes edible and a medicine to cure many ailments.
So should the mind be treated with the words of wisdom of the Guru. Dispelling ego and pride, then becoming benevolent it reduces other vices. It frees the evil and vice-ridden people from evil deeds.
When a lowly person joins the saintly congregation, he too becomes superior just as lime when joined by a betel leaf and other ingredients yield beautiful red colour.
So would a base and frolicsome mind wandering in four directions get absorbed in the blissful spiritual state by coming into the refuge of the holy feet of the True Guru and the blessing of the saintly assembly. (258)