Which line in the poem "Spring Day" seems to let us see the blooming flowers in spring?

The poem "Spring Day" seems to let us see the spring poem with hundreds of flowers blooming: It is easy to recognize the east wind, and it is always spring when it is colorful.

Spring Day

Song Dynasty·Zhu Xi

The beautiful day brings beauty to the shore of Surabaya, and the boundless scenery is new for a while.

Easy to recognize the east wind, colorful colors are always spring.