graham on Nostr: Any educators out there that can help me understand how channels work on the ...

Any educators out there that can help me understand how channels work on the Lightning network? Got it set up on my Umbrel (with my BTC node) but can’t work out how to fund it or use it. Looking at those who’ve inspired me to action in past with helpful articles…such as CarlBMenger (npub10wv…v22x)​ CARLA (npub1hu3…h8nh)​ or​ BTCsessions (npub1rxy…hnp8)​ or other knowledgeable Nostriches please.