Why is this the answer?

The answer is time because this wonderful riddle is a clever way to talk about the most invisible and important thing in our lives. Time is all around us, and it helps us move from one moment to the next. Let us look closely at all four clues to see how they match up perfectly with time. The first clue asks, "What flies without wings?". Even though you cannot see time, it always seems to zoom by so fast, like a bird flying high in the sky. If you are having fun playing games, time seems to fly by very quickly, but it does not need any actual wings to do it! Time is always moving, and that feeling of speed is why the riddle uses the word "flies." Next, the riddle asks, "What passes all things?". This means that every single thing in the world, like your toys, your friends, the seasons, and even your own life, keeps moving forward as time goes by. Time is the thing that makes a tiny seed grow into a big tree. No matter what is happening, time is the invisible river that is always flowing past everything and everyone. The third clue is about how time helps us with our feelings. It says, "What mends all sorrow?". When something makes you feel sad or upset, it can feel like that sad feeling will last forever. But as days and weeks pass, time is like a gentle helper that makes those difficult feelings feel a little bit easier to carry. People often say that with enough time, even the biggest worries will feel smaller. Finally, the riddle asks, "What brings the morrow?". The morrow is just another word for tomorrow, or the next day. We know that once the night is over, time keeps marching on and brings us the new day and a fresh start. Every morning when you wake up, time has brought you the morrow! Time is always moving, never stopping, and that is why it is the perfect answer to this amazing riddle. It is the invisible force that makes everything happen, all around us.