As of now, you've probably heard the song by Justin Timberlake called "Can't Stop the Feeling". I was introduced to this song as I saw a trending video of a father and daughter in matching pink outfits dance to the song that went viral. My initial thoughts for the video was "aww thats cute", "I hope I can have a husband willing to dance with my future child" and "I wish my father would have danced with me, like that". So I went from present, to future, to past, in a matter of seconds. Enjoyment, to wishes, to regrets... well that was fast. Our thoughts and emotions are like that all the time if we are not mindful, or aware of them. Looking back to before I practiced mindfulness each of these thoughts may have been dwelled on, to analyze them, to judge them, to wish them away... Yet when you're mindful, you notice, and accept them as part of you. Look how much energy the latter experience takes.
I encourage you to Ride the Wave, and look at your emotions and thoughts, as just that, emotions and thoughts....