Read it through once

In his poem entitled ‘Popularity’, included in his “fifty men and women”, the speaker, in the monologue, “draws” his “true poet”, whom HE knows, if others do not; who, though he renders, or stands ready to render, to his fellows, the supreme service of opening out a way whence the imprisoned splendor of their souls may escape, is yet locked safe from end to end of this dark world.