In Walt Whitman's poem "O Me! O Life!," what does he mean by "

Question:O me! O life! of the questions of these recurring,
Of the endless trains of the faithless, of cities fill'd with the foolish,
Of myself forever reproaching myself, (for who more foolish than I, and who more faithless?)

Best Answer - Chosen by Asker: O me! O life! of the questions of these recurring,
Of the endless trains of the faithless, of cities fill'd with the foolish,
Of myself forever reproaching myself, (for who more foolish than I, and who more faithless?)

overall it means ::::

That you are here--that life exists, and identity;
That the powerful play goes on, and you will contribute a verse.

it means the author is pondering life, and endless trains of faithless is that life goes on- there's good and bad [and sometimes you will meet people that aren't faithful]