In writing, as in life, it is valuable to learn to be present. Writing is enriched when detail from as many of the five senses as possible is included. When I find myself content or joyful in a moment, I often stop and think specifically about what is contributing to my happiness.
Example: "This moment brought by the smell of Tide laundry detergent, the sound of Indie music on Pandora, the taste of cinnamon-brown sugar-cream oatmeal, the sight of two itty bitty girls smiling, and the feel of lavendar-infused shea socks."
What is it that has caught your attention about this moment? Is it a cool breeze that's blowing the wind off your face, or the faint smell of rain lingering in the air? Is it a giggle from your child, or stacks of freshly folded laundry? Whatever it is, use it in your writing.