Reason and a mind trained to one specialty are only corners of the future house. Those with narrowly specialized minds can pave for themselves a brilliant future, but they must continue to incarnate until their minds lose their narrow specialization. Only when the intellect loses this can it become wise. Each specialty is meant for conditions of life on Earth, whereas the synthesis of spirit opens all spheres. Spiritual tension accumulates spatial psychic energy. Spiritual tension can lead into any sphere of the astral plane.