This is the state of mind of Buddhism, which lies in personal understanding.
From the Tang Snail Title Lushan Tuolin Temple San Xiao Courtyard Union: the bridge spans the tiger stream, three religions and three sources, and three people San Xiao; Lotus opens a monk's home, one flower is the world and one leaf is the Buddha.
He also said "a world in a grain of sand, a paradise in a flower" and took out Buddhist scriptures. In the past, the Buddha touched flowers, but Ye Jia smiled and went to the Elysium. From a flower, you can realize the whole world and ascend to heaven. Buddha is Buddha. Who can have such a state?
Buddha said: a flower is a world, a tree is a floating life, a grass is a day, a leaf is a Buddha, a sand is a blessing, a pure land, a smile is a dust, and a meditation. All this is a state of mind. If there is nothing in my heart, I can spend a world and a grass in heaven.
Through these, a flower and a grass is the whole world, and the whole world is like flowers and plants. According to legend, Sakyamuni practiced Buddhism under the Bodhi tree, so Bodhi is the realm of enlightenment.