Wow so much work it looks nearly impossible! Or simply just overwhelming. It looks like Jehovah "proceeded to fill [them] with the spirit of God in wisdom, in understanding and in knowledge and in every sort of craftsmanship and for designing devices, for working in gold and silver and copper, and in working of stones to set them and in working of wood to make ingenious products of every sort. And he has put it into his heart that he should teach" (Exodus 35:31-34) Many brothers, ones of which have no professional résumé or experience on construction and how things are put together, are pulling this off. You would think a certain task would be overwhelming, but not so with a person who 'actually' loves Jehovah with every ounce of his life, not so with a person who 'worships' Jehovah in the true sense of the word and doesn't take that word "worship" lightly. If a person loves Jehovah from the bottom of his heart he will never consider a task as a burden, but a privilege despite it's difficulty, a privilege to know that every drop of sweat he puts into his hard work that his Creator is looking down on him with glad feelings in his own heart. The man knows that a sacrifice is not a sacrifice, unless it's a sacrifice. Doing hard and seemingly impossible work for our God gives us exactly that, a deep sense of sacrifice, which is why we are strengthened soooo much when we carry it out, knowing also that Jehovah is helping us also. I believe working hard for Jehovah God in any fashion actually helps a person develop 'intimacy' with God. Intimacy is what gives a warm attaching connection between us and Jehovah, which is really a result of deep love.