Literature Reference: 光添曙色连天远，平地已沾盈尺润，年丰须荷富人侯。—— 《喜雪上窦相公》 The light adds to the dawn stretching far into the sky, the ground already moistened with abundant rain, a bountiful year must be attributed to the wealthy lords. Source from 'Xi Xue Shang Dou Xiang Gong'.
光: Light, radiance. When used in personal names, it often signifies an open and honest heart, a sunny and cheerful disposition, as well as a sense of being filled with hope.
添: "Prosper and Flourish." When used in a name, it symbolizes vigorous growth and prosperity, fostering a promising future career.
Meaning: Guang Tian signifies the addition of light, symbolizing a bright future filled with hope and prosperity.