All experience had yet to the minds of men

“To the world when it was half a thousand years younger, the outlines of all things seemed more clearly marked than to us. The contrast between suffering and joy, between adversity and happiness, appeared more striking. All experience had yet to the minds of men the directness and absoluteness of the pleasure and pain of child-life. Every event, every action, was still embodied in expressive and solemn forms, which raised them to the dignity of a ritual. For it was not merely the great facts of birth, marriage and death which, by the sacredness of the sacrament, were raised to the rank of mysteries; incidents of less importance, like a journey, a task, a visit, were equally attended by a thousand formalities: benedictions, ceremonies, formulas.”

What does the bold part mean?

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[500 years ago] adults experienced life as directly and and absolutely as children still do.
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Ok…but what does “yet” mean?

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Yet= still= at that time.
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