Moshe tells his people to beware of this false modesty. If you want to study and understand and practice Torah, you can. It is not an abstraction without meaning in your life, nor is it a mystery to all but the select few. It is not in the heaven, but right here on earth teaching us how to live at home, in business and at play. Of course the Torah presents a challenge, but not an insuperable obstacle.
Spirituality requires progress.
By this it is meant that angels are stationary, because they can never improve themselves. Human beings, by contrast, have great potential for self-improvement, and should always be making progress in perfecting themselves. You are all standing in a stationary position before G-d, instead of progressing. We must push ourselves to not be content with anything less than the maximum level of spirituality attainable. And you will return and hearken to the voice of G-d.