KANJI GUIDE
The sky, and heaven with it. 天国 is paradise; 天気 is the weather.
輝く is to shine — but unlike 照, this light comes from the thing itself rather than falling on it. Read てる in given names.
May your own light shine.
Both kana for this sound — な and ナ — were made from 奈. And Japan has written foreign names with it for centuries: 加奈陀 is Canada. Yours is in good company.