cloud
霱 centers on a specific kind of cloud: an auspicious or celebratory cloud, often associated with good fortune. The given meaning 'cloud' is a broad gloss, but the character's nuance is a lucky, festive cloud.
霱 combines 雨 (rain, weather) with 矞, which likely contributes the sound and the idea of piercing or rising, suggesting a cloud that rises as a good omen. The exact historical development is uncertain.
Under the rain 雨, a festive 矞 shape rises like a lucky cloud. Picture a cloud that looks like a celebration banner, bringing good fortune.
For イツ, imagine a cloud that brings an 'eats' of good luck—like a feast falling from the sky. 'Eats' cues イツ, and the cloud is the source of the celebration.