The Torah, “Exodus” (VaYakhel), 36: 8, 36:13, 36:20: Then all the wise-hearted people of the performers of the work made the Mishkan out of ten curtains [consisting] of twisted fine linen, and blue, purple, and crimson wool. A cherubim design, the work of a master weaver, he made them. And he made fifty golden clasps, and he fastened the curtains to one another with the clasps; so the Mishkan became one. And he made the planks for the Mishkan of acacia wood, upright.
This is about the creation of the anti-egoistic Masach (screen), returning the Light, and all the other spiritual actions that are only in order to bestow. And he made the planks for the Mishkan (Tabernacle) of acacia wood, upright, which means that the wise-hearted raised the Masach to the desired height and thus left the ego under the Masach.
The clasps of gold and the other jewels symbolize our egoistic desires, everything that is so close to our ego. If we show these things to animals, for example, they will not even look at them, but they are very important to the human ego. Humans differ from animals in that. This is actually what our ego loves. Thus the ascent to a certain level symbolizes the adaptation of the Masach to a person’s ego, to what he can bear and stand against.
From KabTV’s “Secrets of the Eternal Book” 7/10/13