This doesn't happen all the time, but it happens enough for me to want to recognize how lucky I am for when it does.
In the midst of important moments, I am able to feel their significance (and I'm talking about unique moments that aren't set aside in society as special moments per se). I don't always understand how very significant the situation might be until later, but I get this sense that I should pay a little closer attention and my heart and mind hold onto bits of conversations, feelings, smells, and other sensory input.
I'm grateful for this special sense for the treasured times in my life. Many times I have been able to reflect on that sense during a moment and have poignant gratitude that I could recognize significance in the making. I am thankful right now as I document it actually because I know that my writing will one day become part of my memory and how I can hold onto at least a few morsels of these moments that make my life what it is.