The pigs represent the obscure movements of the vital in the nature.
The danger of the vital is that of taking hold of love, Ananda, the sense of Beauty and using it for its own purposes, for vital human relations or interchange or else some kind of mere enjoyment of its own.
When the vital forces or beings throw an influence, they give it certain forms of thought, action and put them in the minds and vital of people so that they feel, think, act and speak in a particular way. Whoever opens to their influence acts according to this formation, perhaps with variations due to his own vital temperament.
This state which tries to come upon you and seize is not part of your true self, but a foreign influence. To yield to it and to express it would therefore be not sincerity, but the expression of something false to your true being, something that will grow more and more foreign to you as you progress. Always reject it, when it comes, even if you feel strongly its touch; open in your mind and soul to the Mother, keep your will and faith and you will find it receding. Even if it returns obstinately, be equally and more obstinate against it, firm in rejection — that will discourage and wear it out and finally it will grow weak, a shadow of itself and disappear.