Mary62708's "No one like you" is a short, tender poem about missing someone who matters deeply. The speaker compares the loved one to two kinds of light: warm sunshine by day and cool moonlight by night. Each comparison is built around a physical feeling. The sun is a ray on the skin, something to soak in, while the moon is a shimmer that lights up the sky.
The repeated line "You aren't around often" is where the ache comes in. Sunshine and moonlight are lovely, but they come and go, and the speaker seems to treat every appearance as precious. The phrase "Watching you grow" suggests the moon's changing shape, and it may also hint at watching the person change over time, though that is an inference. The mood is gentle, grateful and a little wistful. The speaker isn't angry about the absences. Instead, the repeated closing line, "No one could ever find" light like this, says the person can't be replaced.