A bog fire can be tricky to fight, as the crew is concerned with what is above-ground and highly visible and that which is voraciously burning underground.
Kindness can be compared to a bog fire. The "above-ground", which you readily see, hear and feel, if you're paying attention.
But kindness is also "underground" or, more aptly, "inside". The donor is fueled with the fire of life when an act of kindness is performed with an open-heart. The benefits are measurable in a change in heart rhythms, if the person has taken the time to learn what this means and what it feels like.
It is a conscious choice, which needs to be practiced. It doesn't require a lot of time and can be done in any situation. Some of the places that I've practiced these techniques include the operating table, traffic and before a presentation.
In stress coaching, you'll learn to see and feel the difference between jagged heart rhythms (stress) and the smooth ones.