The term denotes a foundational element, crucial for establishing the structural integrity and alignment of a building. It is typically a large, carefully selected stone placed at the corner of a structure, serving as the starting point for its construction. This element ensures that the walls are properly aligned and that the building is stable. An example of its literal use would be the placement of a large, dressed stone at the northeast corner of a temple, carefully leveled and squared to guide the construction of the entire edifice.
Its significance extends beyond the purely architectural. Historically, it represented strength, permanence, and the deliberate planning inherent in construction. It often held symbolic meaning, representing the establishment of order and stability. Metaphorically, it represents the essential principle or person upon which something else is based or depends. The concept highlights the necessity of a firm and reliable base for any successful endeavor.
