It's hard to know what other people mean

I think she's looking for a description of what happens when you let it out. Say you were recording yourself (don't recommend actually doing it, just imagine it ) and then looking (hearing, your other senses could also be involved) what happened. What does it look like? What does "letting it out" sound like? Are there any tastes, tactile sensations, internal changes that you experience?

If this helps, I'll tell you about my experience of a moment or two of joy. I feel a pressure, a fluttering of a sense of pleasure that rises from my gut to my face, which warms as I smile. My eyes widen and feel softer at the same time. I reach my arms upward, close my eyes, and lean my head back. I feel my shoulders relax and drop. I catch a whiff of the natural perfume sample on my wrist. It smells a little like seaweed on wet sand and the sweetness of a vanilla shortbread. I open my eyes and admire the orchids on my desk, in the last throes of blooming. I wonder when I will lose them, and anticipate the time when they will reappear.