You know, if the Old Testament and the Torah are to be believed, there would seem to be a very good reason why God should hide from His creation.
Because in those old stories, every time God revealed Himself directly, His people started acting like idiots. Let's take Moses and the Commandments as an example: There the Hebrews were, having been guided by the pillar of smoke by day and fire by night for months, provided with food by a literal in-your-face miracle (manna springing up from the ground every morning - but don't complain about wanting some meat for a change, or He's gonna lay the smack down on you!), and when they reach this mountain, their leader is taken up into a perpetual cloud for a one-on-one with Him. Moses was gone for less than a week when the Hebrews decided, "You know what? To Sheol with this God we've been seeing every day, who's fed us and saved us from our pursuers - let's just melt down all our jewelry, make a cow out of it, and worship that!"
Or when God decreed that their government should be a fairly loose form, ruled over by judges who would treat everything coming before them like a legal case. And the Israelites patted His figurative hand and said, "You know, Lord, that's a really cute idea You had. But we don't want a judge - we want a king, just like all the neighbors!"
And the hits just keep on a-comin'... 
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Sodium is a metal that reacts explosively when exposed to water. Chlorine is a gas that'll kill you dead in moments. Together they make my fries taste good.