What does Guanghua mean in Lesson 11 of the next Chinese book in Grade Four?

the brilliance of (white) tassels (silver).

The poem is in the form of four lines and one section, with even sentences in each section rhyming, and the whole poem is rhymed, which sounds like a cheerful serenade. In addition, the author is filled with sincere love, praise and reverence for birch between the lines, so this cheerful feeling has increased a bit.

Birch is the national tree of Russia. It is cold-resistant, silvery and elegant, so the poet's praise for Birch contains his love for the nation and his ardent feelings for the motherland. When we read "There is a white birch in front of my window", we can fully understand the intimate relationship between the poet and the white birch, which is inseparable from each other.