Dear Judy,
What a lovely post you wrote, thank you very much for it. But first, let me tell you how sorry I am that you and other visitors could not see the featured pictures (and I do hope they are showing now). And how sorry I am now for this belated response.
Like you, I have often wondered how the mind of Bosch's contemporaries, and their struggle with the notions of good and evil, was like. I find it fascinating the world of demons and dragons whose very existence they generally appear to have taken for granted, either as everpresent in their lives, or underlying their daily reality. In this sense, Billdaddy's post has been most revealing to me. Maybe those demons and dragons are still present in our lives but under modern forms and shapes, and we simply refuse to see them. But as soon as some evil befalls us, we get to perceive that real world of death and illness and destruction under our feet; a world that, in the Christian conception mainly, is brought about by sin.
I believe the purpose of Bosch's works like the ones featured and commented here was to teach everyone, rich or poor, wise or simple-minded, how they could keep themselves free and safe from such evil things as greed and concupiscence, pride and envy, egoism and cruelty, and ultimately death. They only had to turn their eyes back to a primeval time when life was just paradisiacal and man and woman lived in perfect peace and harmony, joy and contentment, under the saintly feet of their Creator. That alone could save them from sin and its dreadful consequences and, indeed, could save the whole world from ultimate destruction. And Bosch, like many religionists of his time and of previous times (and for that matter like the Church itself, if you remember all those stained-glass windows and the unlikely, dreadful creatures atop of the big cathedrals), showed all this to his contemporaries by means of such symbolic representations of Good and Evil as dragons and fairies, demons and monsters, and other grotesque and fantastic beings interspersed among countless allegories and exemplary proverbs most beautifully and wonderfully painted by his masterly hand - the keys to which we have unfortunately lost in the course of time.
Now I may not have a garden to water like you, but have become so absorbed by all this speculation on the subject of Bosch's painting that have forgotten I must eat something before going to bed for the night.
Thanks again,
Luis Miguel Goitizolo