In the case of those who are going from good to better, the good angel touches the soul gently, lightly and sweetly, like a drop of water going into a sponge. The evil spirit touches it sharply, with noise and disturbance, like a drop of water falling on to a stone.

In the case of those who are going from bad to worse, these spirits touch the souls in the opposite manner.

St. Ignatius of Loyola, Spiritual Exercises #335
Found here, Week 34 of the Online Retreat in Everyday Life