@Johnny Fresh,
Spinoza and Socrates were both understood as undermining or rejecting religious orthdoxy, as indeed they did. But their type of religiosity, if you can call it that, is far more sophisticated than that of the average believer, as was Einstein's. But they were all geniuses (genii?)
The challenges modern people are facing are somewhat different. There is a strong tendency in secular society to deny anything spiritual whatever. In fact, in some parts of the industrialised world, any kind of religiosity is beginning to be equated with superstition. There are 'secular activists' who wish to ban all reference to anything religious in public life. But this also creates many serious problems and leaves a lot of questions unanswered.
In science there are many partial answers and loose ends, but I think the sense of a coherent scientific world picture is more remote now than it was 100 years ago. Besides, the 'scientific' depiction of man is often completely de-humanising. In society, secularity often leads to ethical relativism, which reduces moral judgement to matters of private opinion. And indeed for many moderns there is a pervasive feeling of alienation and meaninglessness which you can only fill by shopping, drinking, and being entertained. (Welcome to the Mall....)
So the point about 'belief in God' is that it gives the believer a sense of his/her place in the scheme of things, a feeling that their life matters and their decisions are of real consequence. The alternative seems to be that phrase which eloquently sums up the outlook of a lot of modern teens, as spoken by eminent social philosopher, Bart Simpson: "Whatever".
Myself, personally - I never argue for or against the existence of God (other than to point out what might be involved in asking the question). It is a futile argument. But I strongly believe in the existence of moral law.
