This is the state of being buoyant, either in water (like a beach body on a salbabida in Boracay) or in air (like dust particles you see in a sunbeam). Figuratively, it's how you feel after 3 cups of coffee and no sleep—your brain is just **nakalutang**. Or when you're so in love, "nakalutang sa alapaap" (floating in the clouds).