Green, mighty trees are beautiful with their leaves, and they give happiness to all living beings with their shade.

This beautiful couplet talks about the magnificent trees. They are described as "green and grand," looking splendid with their lush leaves. More importantly, these trees provide comfort and happiness to all living beings by offering their cool, welcoming shade. It's a lovely reminder of how nature's beauty also serves a vital purpose, offering solace and relief to everyone under the sun.