What does the poem mean by "putting your hand in the field with green seedlings"?

"Fill the field with green plants by hand" comes from the poem "Transplant Poetry" written by a cloth bag monk in the Northern and Southern Dynasties. The whole poem is:

Transplanted poetry

Reach into the field with green seedlings and lower your head to see the water in the sky.

Six clean paths are paths, and retrogression is progress.

Precautions:

① Six: In Buddhist language, it refers to six sensory organs, namely, eyes, ears, nose, tongue, body and heart. This also refers to the roots of seedlings.

Translation:

The transplanter is holding seedlings in its hand and irrigating them into the paddy field one by one.

When transplanting rice, you can see the endless blue sky and white clouds reflected in the paddy field.

Transplanted seedlings need clean roots and do not rot before they can grow into "rice".

On the surface, when transplanting rice, it is inserted backwards at the same time, but it has always been forward. ?

Creative background:

Poetry of transplanting rice seedlings was written by a cloth bag monk during his folk travel in the Northern and Southern Dynasties. He used to be with some farmers who transplanted rice to educate them.