The sublimation of a substance is its conversion from the solid phase to the gas phase, with no intermediate liquid stage. By contrast, when most solid substances are heated at atmospheric pressure, they go through a liquid phase before being converted to the gas phase. The process of sublimation has various practical applications.
From a Unification perspective, several points can be made:
- Although most solid substances, when heated at normal pressures, are converted to the liquid form before reaching the gaseous form, some solids undergo sublimation. This discovery demonstrates the importance of careful experimentation to determine the properties of different substances. Thus, to understand the world around us, we need to combine our mental talents with actual physical work.
- Our efforts to study substances and their properties spring from our inner desire to understand the natural world, regardless of whether the knowledge gained helps us for our practical, survival needs. These efforts distinguish the human species from all others on our planet.
- The scientific study of sublimation and the development of various practical applications are manifestations of our intelligence and creativity—attributes that are linked to our spiritual dimension. These attributes are also reflective of God's intelligence and creativity. In addition, the results of these studies provide glimpses of some of the processes by which God invested His heart, intelligence, and energies in creating this world.
- By investigating substances and their properties, we work toward establishing harmony with the created world and stewardship (dominion) of true love over it. In Unification terminology, we work toward fulfilling God's "Third Great Blessing" to humanity.
- The property of sublimation can be put to use in practical ways. As the Unification principle points out, we need to satisfy our external needs as well as our internal desires for our lives to be happy.
- Even as the sublimation of substances is useful for human needs, this property provides an internal guiding principle—to live for the sake of others. By so doing, we demonstrate God's nature in action, and we can create a world of harmony and peace, which is the desire of all people.