The rising of the sun each day gives brightness enough for anyone to see the dew on a plant, the cloud in the sky, simply the beauty in nature.
Beyond that, is the ugly faces of circumstances in ones day to day life, posed orderly by the sequence of happenings of the past and that of the present. But the sun failed to show how to live THE DAY.
There is hence a sense in learning to live today first, and then tomorrow, as the sun rises again and again each day to bring newness of life.
Making worries for tomorrow is futile. For no one knows what the sun might bring in the morrow
Hence the saying goes;
Learn to live today first
Take it a step after the other.
Make no worries for tomorrow
For tomorrow shall take care of itself.