SEEN VS. UNSEEN

thinking of "seen vs. unseen". 1st thought of it concerning teeth and why (God made it) that we can do damage to our teeth, specifically by (on a regular basis) not brushing after eating sugar foods. it initially seemed to me that it would make more sense for God to create us so that we would know immediately that we were doing something wrong such as not taking care of our teeth correctly. the conventional wisdom on this, i think, is that God did not make us to eat concentrated sugar food often. that was a later invention of mankind. that is true. but then the other day i heard a preacher talking about "seedtime and harvest", and that sometimes (often)people choose to disobey what they know that God has intended, and see no immediate bad results even after some years. this makes people think that there are no bad consequences to their actions- that God did not see. But that preacher noted that seedtime is BEFORE harvest- they are not the same time. (other places in the Bible refer to sowing to the spirit or sowing to the flesh.) so, in a sense, the results of bad tooth care are unseen or invisible- they are hid by time. so the question is: why did God make things that way? so one possible answer is that God wanted us to develop our ability to envision the unseen and act upon its reality. it is so much easier to act on what we can see and otherwise perceive. it is a real stretch to motivate ourselves to follow the correct path that we have to envision instead of see. i'll try to think and write more on this later. (f.y.i. -i was thinking of my own 57-year-old teeth that i've not kept with the best care; and trying to motivate myself to "do the right thing"-go brush them that night.)