Read the lines from Dickinson's "The Wind Began to Rock the Grass":
The Wind began to rock the Grass / With threatening Tunes and low – / He threw a Menace at the Earth – / A Menace at the Sky.
What effect do the verbs rock and threw have on the poem's first stanza?

Answer:Dickinson’s poem is written in PAST tense.The past tense in this poem is PERFECTWhitman’s poem is written in  PRESENT tense.The present tense in this poem is SIMPLERevise “I celebrate myself” to make it present-progressive tense."I AM CELEBRATING MYSELF"Explanation:Just did the intrusction on edge

Although I'm not sure exactly what you're asking, it looks like you'e been waiting a while so I'm gonna give it a shot. At the beginning of it, It says began to rock which is present tense so it makes it sounds as if it is happening as we read it but then threw is past tense which makes it sound like it already happened.Again I'm just pretty much guessing but that's all I got. Sorry if it didn't help but I tried.