Every aspect of the Mass reveals something about God, and something about us. We are told through the entire Mass of Who God is: Judge, Guide, Father, and Redeemer. We are also told who we are: sinners, disciples, adopted children and holy ones. As we further our understanding of the Mass (and I could go on forever with these "ponderings", but will stop [for now] with this one) we will also further our salvation. If you know the Mass and believe all it says--in heart, soul, mind and body--you will have eternal life.
St. Pio of Pietrelcina once said that "It would be easier for the world to survive without the sun than to do so without the Holy Mass." There are science fiction scenarios out there talking about the world ending because the sun is dying. I have read a ton of them; some good, some awful. I have never read a story that speculates what would happen if the Mass were genuinely to end. Some Saints have said the world would cease to exist if the Mass ceased entirely, because in the Mass, Jesus is saving the world from total destruction.
The Mass, every Mass, is telling us that God is Judge and Savior, and we are in need of Him (in both respects!). We must learn this. We must know this or we are lost, forever. This is why the Mass is obligatory. It is not because the Church wants to control us. It is because she is demanding with all diligence, "Go to Heaven!" Without the application of the Sacrifice of Christ, we have no hope. Go to Mass (and don't forget regular Confession!).