There are two sides to each coin. A glass can be seen as half full or half empty. There's the story about two shoe salesmen who visit a village where no resident wears shoes. One comes back and says that there is no point in going there to sell shoes, while the other sees the opportunity to sell shoes to every single villager. One sees believing in God as a way of avoiding going to hell, while another sees it as a way of going to heaven. We yearns for God ~ it could be that we are tired of living or that we are in love with God. Attending Mass every Sunday is fulfilling an obligation for some and a chance to unite with God again for others. In each case, both ways of seeing can be valid, but one is usually superior to the other. When it comes to making spiritual progress, seeing it as seeking union with God is definitely superior to seeing it as struggling to become holier on you own.