According to Osho, no one is truly without intelligence. The very capacity to feel unhappiness, to ask what life is, or to wish to rise above sorrow already proves sufficient intelligence. Intelligence sleeps within everyone and can be awakened and strengthened with a little effort and resolve. Therefore, anyone can journey toward the divine - focus on awakening your own inquiry rather than judging others.
If you can notice your pain and wonder about life, you already have enough smarts to find the divine; just wake it up with a little effort.