How does the famous simile in line 2-3 reveal that the speaker's mind or will is paralyzed ?

When the evening is spread out against the sky
Like a patient etherized upon a table...

Ether was a medicine in the past to prevent patients from feeling pain during operations. It left the patient numb and sometimes unconscious hence "paralyzed". Numb and paralyzed is how Prufrock related to love and women. 

What is the speaker inviting someone to do in lines 1-2