Typically a receipt is given when you purchase an item which allows to return the product if need be. Although for Kenny, a receipt is not needed, as he will not “take back” the words he has spoken, as he truly means what he is saying.

As stated in the previous lines, Xzibit hated MTV for playing him like a minstrel character. Xzibit openly admits that he did things out of his character, such as, host MTV’s “Pimp My Ride” to make a quick buck off of America.

A falling star or shooting star, for people who are superstitious represent change in ones life, aswell as used to wish for a better life. To non-superstitious people who don’t believe in such things, they wouldn’t feel a need to make a wish if they had seen one.
If a superstitious person wished upon a star and the wish didn’t come true, then they would be dissapointed. If one chooses to not wish upon a star one wouldn’t experience dissapointment.

Icarus wings are the feathered wings that belonged to Icarus in greek mythology. Icarus had died for flying too close to the sun.

To state you adjust those wings to reach the sun is simply a suicidal act. Sadistik’s reach for greatness can be seen as the same.
May be a reference to Seven Devils:

Oh I can see it on their face I don’t get a lot of praise
I’ll bet I’ll posthumously get it though

Erick takes Excedrin, which is an over-the-counter headache pain reliever. Erick takes these to try alleviate his headache but it is actually making it worse.

This line is referring to the media and how it imposes their messages into the minds of passive audiences.

The media has the potential to control us, “spoon feeding'‘ us by what to feel and think about certain matters. Bliss nor Eso are not passive though, they do not allow themselves to brainwashed by the media because they have established their own thoughts – ones that are not influenced or determined by the media.

Eso has thoughts that bring him to a dark place, a place where he is sad and depressed. It’s these thoughts and emotions that bring him down, so he uses alcohol as a temporarily solution to escape these emotions and numb the pain, thus picking him up. Eso uses these reasons to try and justify his drinking habits/addiction.

A rappers catalogue refers to the artists discography that showcases the artists body of work throughout his career. Ab-Soul is saying go through his catalogue, you’ll still find he hasn’t changed the direction of his music and has been consistent throughout.

This is Ab-Souls discography currently, which needless to say is pretty impressive.

The quality of majority of the music in hip-hop/rap mainstream wise is underwhelming. But because all these songs are constantly on rotation and played frequently on the radio, people have forgot how to distinguish good music from bad music.

Stop trying to be or follow in the footsteps of somebody else, alot of young rappers try to rap like 2Pac and claim to be as good as him, people have put Tupac in a godlike-rapper-stage so you shouldnt even try that – Create your own path and aim for the stars.