One definition of mindfulness is being aware of what's happening in and around our bodies now in a gentle and self-nurturing way.
More information on mindfulness is available in these resources.
Love Affair with Life - a YouTube video introduction to Mindfulness-Based Stress Reduction with Jon Kabat-Zinn
Cultivating 9 Mindful Attitudes - a YouTube video that relates positive psychology to being in the moment (with Jon Kabat-Zinn)
UCLA’s Mindfulness Research Awareness Center - provides information, guidelines, and research on Mindfulness practices