To pause for a moment, you can see where this is going. Just as with the cultivation of mindfulness, where we can focus on one primary object of attention or expand the field to include a range of objects to attend to, so in the lovingkindness practice, we can linger for days, weeks, months, or years at differing levels of the practice, all of which are valid, and all of which, ultimately, include each other, because after all, it is your own heart which is softening and becoming more inclusive.