I remember teaching Edward Thomas's 1917 poem "Adlestrop", about the train that stopped unusually at the eponymous small station on the Oxfordshire-Gloucestershire border, to a group of 13-14 year old mixed-ability pupils, back in my long-since teaching days. I said that I didn't think it was a "nature poem" of the 'boring' kind they probably didn't like much; but rather an instance of trying to describe that sensation one sometimes has, that there is a profound thought somewhere on the edges of one's mind, a feeling that there is something very important to think about if only one could think what it is. This is sometimes called 'the mystic experience'. "I wonder if you know what I mean," I said. They all nodded at once.

≈M≈

Ref for the poem —

http://www.poemhunter.com/poem/adlestrop/