* "Be a bush if you can't be a tree..." This implies that sometimes we might not be able to achieve our grandest ambitions or become the "tallest tree" in the metaphorical forest. It's okay to be smaller, to have different strengths.
* "...sun, star" These elements represent the ultimate heights of aspiration. The sun gives life, and stars are distant, shining beacons. Being these things is ideal, but not everyone can achieve such heights.
* "Be a bush..." Being a bush is still valuable. It offers shelter, provides food, and adds beauty to the landscape. It is still a part of the ecosystem, contributing in its own way.
Overall meaning: The quote encourages us to be comfortable with ourselves, even if we don't reach our ultimate goals. It's about finding meaning and purpose in what we can achieve, even if it's not the most spectacular. We should celebrate our own unique qualities and contributions, just as we celebrate the unique beauty of a bush, even if it's not as grand as a towering tree.
In essence, it's a message of self-acceptance, finding your own value, and making the most of the resources you have.