Just a couple comments:
Any time you start a poem or a story with a one-word line, especially an abstract noun like "bliss," you're making things very difficult for yourself. You're essentially saying that the following poem will be
the definitive description of "bliss" since the dawn of literature. That's a pretty tall order. Most readers will look at a first line like this with incredulity.
There are several alternatives. You can do anything from adding a single word (nocturnal bliss, chemical bliss, fleeting bliss, etc.) to completely replacing the word "bliss" with an image that you associate with bliss. Or something inbetween these two extremes. I would tend to lean more toward the second option though. Bliss itself is just a word, it's not very evocative, it doesn't really bring people into the world of your poem all by itself. If you really like the idea of a single-word line like "bliss," I would suggest putting it later in the poem and building up to it rather than starting off with it.
Also, avoid the temptation to rhyme every single line. Rhyming couplets are great for making a point but they start to grate after a while if it's just one after another. The rhymes can also start to feel forced. Even slam poets and MCs (the good ones anyway) know when to change up the rhyme sceme. Rhyming every other line instead of every single line can work wonders for the flow of a song or poem. It can also allow you to really start having some fun with the language.
Not to be too pretentious, but here's four lines from Shakespeare to illustrate:
If I profane with my unworthiest
hand
This holy shrine, the gentle fine is
this:
My lips, two blushing pilgrims ready
stand
To smooth that rough touch with a tender
kiss.
All the tension in these lines builds to "kiss" because Shakespeare makes you wait for it a little bit instead of rhyming right away. So basically my advice to you is: be just like Shakespeare
