Let a man maintain this mindfulness all the while he is awake, whether he be standing, walking, sitting or lying down.
Love is in Pali Metta, and the Metta Sutta 4 says (no doubt with reference to the Right Mindfulness just described):" As a mother, even at the risk of her own life, protects her son, her only son, so let him cultivate love without measure towards all beings.
it is this Noble Eightfold Path, that is to say, Right Views, Right Aspirations, Right speech, conduct and mode of livelihood, Right Effort, Right Mindfulness and Right Rapture."
Mindfulness meditation means you're focusing on being in the moment, no matter what you are doing in that moment.
Whatever method aids your gradual descent into peaceful mindfulness is what you should do during this time, whether it's deep breathing, imagining a lush forest, or hearing the crash of waves on the shore.