Lama Zopa Rinpoche explains about Heart-Spoon:

"What is a heart-spoon? When you're eating, you use a small spoon to extract the very best portion of the food in front of you. Similarly, this teaching on impermanence and death by Pabongka Dechen Nyingpo helps you extract the most precious essence from this human life: the ability to secure the happiness of all future lives, liberation from cyclic existence, and enlightenment for the sake of all sentient beings."