"Up the sky" is an English phrase, which literally means "holding up the sky". However, this phrase is usually used to describe something very high and incredible. For example, when we see a particularly wonderful performance or hear a very touching song, we may say, "Wow, that's really earth-shattering!" "It means that at that moment, the world became better, even higher than the sky.

"indomitable spirit" can also be regarded as an inspiring slogan, inspiring people to keep moving forward. Sometimes, we may feel overwhelmed or trapped in a certain situation. At this time, if we hear someone encouraging us to work hard and not give up, we may feel new strength and motivation. Therefore, "Heaven" can be our slogan, and let us go forward bravely in life.

What I want to say is that it is very important for human beings to explore the unknown and break through their own limits at any time. Whether it is science, art or interpersonal relationship, we need to be brave enough to try new things and explore new fields. Sometimes doing so may lead us to move in unimaginable directions, but as long as we firmly believe in ourselves and keep a positive attitude, we can continue to go up and hold up the sky.