My first memory in life

PROMPT: What’s my first memory? 

I can very vividly recall my first memory. I was a baby and had woken up from a nap in my crib. And I just laid there on my back watching the dust particles in the sunlight coming in through the window. I was mind blown. I had no idea what these dust particles were and desperately needed to know. I don't know how long I laid there mesmerized, but it felt like a long time. 

I suppose I'm still laying on my back, trying to understand life around me. 

What about ya'll? Answer the prompt in the comments. What was your first memory?