The word 感谢 is formed by combining two characters, each contributing a layer of meaning to create a single, cohesive concept. The first character, 感 (gǎn), carries the core idea of "feeling" or "sensation", establishing the internal, emotional dimension. It is joined with 谢 (xiè), which means "to thank" or "to express gratitude", representing the outward acknowledgment or verbal expression. Together, they seamlessly merge the internal sentiment with its external manifestation, forming a complete idea of gratitude that is both deeply felt and actively expressed.