This moment is but a small grain in the sands of time. What happens in the next moment is unknowable but this too shall pass and a better moment shall arise. In your life, in the history of the world, of various civilizations, moments have come and gone. Some have been better. Some have been worse.
If you are in a moment of overwhelm, if world events are weighing you down, turn solidly to this moment. In this moment, you are okay. As this moment turns to the next, you are okay. Maybe tomorrow or next week will be a different story. However, as Mark Twain said, “Worry is the interest we pay on trouble that never comes.” Trouble might be imminent but until we are actually in it, worrying about it is a drain on energy that could be available for something else – something productive or even relaxing.