The primary intent of Buddhist psychology is to live within a framework that seeks to reduce suffering for all beings, living with awareness and an intent to choose actions meant to be of benefit for ourselves and others. This is why the Buddha pointed us toward intentional awareness, which requires our attention, and is at the very center of mindfulness.
In its most simple definition, mindfulness means to pay attention on purpose with a kind and interested awareness. We cultivate intentional attention—mindfulness—so that we may nurture a feeling of friendliness, kindness and curiosity AND strengthen our staying power to remain connected to whatever it is that NOW is calling on us to notice and be with.