Pessimism is expressed well in this poem.Which ended with rainbow's dubious hue. If you decide to look at the world with negativity, everything looks gloomy for sure. The message here , it seems, is if you start your day with negative feelings, everything turns out as bad as possible. The mind can play make tricks on your life, it's in your hand how to choose the outcome.The flow is good, no rhythm or rhyme noticed .
A good read,
Jaya H.