The figure a poem makes. It begins in delight and ends in wisdom... in a clarification of life - not necessarily a great clarification, such as sects and cults are founded on, but in a momentary stay against confusion.
Of course there is matter for remark in poems. Nobody denies that. But it must be solemnly laid on everybody in this world to make his own observations and remarks. That's what we mean by thinking, and that's about all we mean. A teacher says to a pupil "Watch me notice a few things in the next few months: let's see you notice a few things too."
If you remember only one thing I've said, remember that an idea is a feat of association, and the height of it is a good metaphor. If you have never made a good metaphor, then you don't know what it's all about.