If you are not living this moment,
you are not really living. - Eckhart Tolle
I'm not sure that this even needs an explanation, so I'll pose a few questions instead.
How long has it been since you took a quiet walk in the woods?
When was the last time you sat outside in the sun's warmth eating an ice cream cone?
What did you talk about over dinner last night?
These are examples of moments to be lived...fully and completely, and these are times we are more likely to "live in the moment". However, each day is made up of moments that too often pass by without a thought or glance.
Think about this next time you see the sunset or watch the birds at your feeder or visit with a friend. Cherish the moments. Live life!