Is this the purpose and goal? Should it be for each of us?
There is an assurance that comes from the comfort of knowing that you are truly His. When you have a relationship you know is secure, it makes that relationship more stable, IMO. One isn't always worried that the other is not pleased with them (which wouldn't seem to be a good foundation for a relationship). Some take this too far and find, beyond comfort, complacency.
Well, D-fendr, I had almost finished answering this question when I somehow deleted it! Now I get to start over. It was getting to be rather long...I think I'll just sum it up by saying that if I had serious doubts about where I stood before God or were worried about losing my salvation if I sinned, it would absolutely destroy me. Having gone through that experience (of doubt) about 20 years ago, I remember all too well what it was like, and I do *not* know how I could deal with that again. It was horrible. I had no joy, I was depressed, I lost faith, I was afraid, I questioned the love of God, and I was totally focused on myself-----NOT a happy nor productive existence! I hope this answers your question.