Seeking our own comfort is built in. We want to avoid pain and find the happy place in the world. But there is an attendant danger in seeking only comfort and not truth and even finding our duty. I ran across this quote this morning from the CS Lewis:

In religion, as in war and everything else, comfort is the one thing you cannot get by looking for it. If you look for truth, you may find comfort in the end: If you look for comfort you will not get either comfort or truth--only soft soap and wishful thinking to begin with and, in the end, despair.

CS Lewis, Mere Christianity, book 1, chap 5, para 6, p39. Quoted in The Quotable Lewis ed Martindale and Root.