A mind of perfect poise
"It is to the mind of perfect poise, housed in a body of clean habits, stabilized neural energies, and balanced chemical function — when the physical, mental, and spiritual powers are in triune harmony of development — that a maximum of light and truth can be imparted with a minimum of temporal danger or risk to the real welfare of such a being." 110:6.4
https://mm.spiritualfamily.net/Urantia_ ... ml#110:6.4
110:6.4 When the development of the intellectual nature proceeds faster than that of the spiritual, such a situation renders communication with the Thought Adjuster both difficult and dangerous. Likewise, overspiritual development tends to produce a fanatical and perverted interpretation of the spirit leadings of the divine indweller. Lack of spiritual capacity makes it very difficult to transmit to such a material intellect the spiritual truths resident in the higher superconsciousness. It is to the mind of perfect poise, housed in a body of clean habits, stabilized neural energies, and balanced chemical function -- when the physical, mental, and spiritual powers are in triune harmony of development -- that a maximum of light and truth can be imparted with a minimum of temporal danger or risk to the real welfare of such a being. By such a balanced growth does man ascend the circles of planetary progression one by one, from the seventh to the first.