Reality is the only way for us to realize our ideals. It is precisely because of the hardships in real life that we should strengthen our ideals and beliefs, be down-to-earth, solve problems step by step and realize our ideals.
Without reality, the ideal is empty, but with reality, there is no ideal. Our life will be boring, too.
Therefore, we must have ideals and pay attention to reality, otherwise the ideals are castles in the air and cannot realize our own ideals.