Instead of focusing the attention on any one object, we keep it open, monitoring all aspects of experience, without judgment or attachment. All perceptions, be them internal (thoughts, feelings, memory, etc.) or external (sound, smell, etc.), are recognized and seen for what they are. It is the process of non-reactive monitoring of the content of experience from moment to moment. Examples are: Mindfulness meditation, Vipassana, as well as some types of Taoist Meditation.