Think about it - the scenery before your eyes changes every moment. The sounds alternate in your ears. The scents bring you smell. Tactile sensations are felt throughout the body. Flavors let you taste. And the constant thoughts and mental perceptions fly through your mind.
It's easy to get stuck worrying about the past or future, but then you lose out on all this beauty in and around you.
Today - practice bringing your attention back to the present moment and open up to the sensory experiences. Avoid labeling these as "pleasant" or "unpleasant". The phenomena just comes your way regardless of how you feel about them. Might as well see and embrace them in their true form.