The other alternatives being clearly seen as unreasonable, this is the only choice left. The very existence of the universe, then, implies creation by a personal Mind sufficient to produce it. The universe is inexplicable on any other accounting. All agree that order, harmony, and systematic arrangement pervade the universe. Natural phenomena are teleological, i.e. they have rational ends within the cosmos.
Natural phenomena are complex, yet intricately harmonious.
Complex order of cells, molecules, atoms, atomic particles. Complex order of moons, planets, comets, stars, galaxies. Exact suitability of earth for biological life. Complexity of animal physiology, contrivances, instincts, etc. Detailed interrelatedness of the ecological system.