Toward Ecosophy

No. As I understand it, each of the barriers across the Tree -- the Veil of the Sanctuary below Tiphareth, the Abyss at Daath, and the three Veils of the Unmanifest above Kether -- are unique, and the skills that will get you past one of them will not work on the other two. Since the upper two are quite literally incomprehensible to the human mind at its current stage of evolution, I wouldn't worry about either one yet; getting through the Veil of the Sanctuary is three incarnations' worth of work, more than enough to keep all of us busy.