Reward points and bonus points. People say, "lucky," making a V-sign. There is a feeling of luck but not a feeling of blessing. Knowing the secret intention, they only find that they are mean. By the way, "happy" has the same etymology as "happen." There is an implication of happening to receive happiness. Unlike "lucky," "happy" reveals a touch of gratitude. From the post to the Asahi Kadan (December 15, morning edition).
"December 29 2019
from “Oriori no Kotoba” by Kiyokazu Washida, The Asahi Shimbun"