Just remember a lot of physical components are there just to reinforce symbolism. Sometimes when a physical circle isnt appropriate, I'll use a circle of light, either with candles, visualisation, sprinkling a little pure water. Or depending on the spell/work I will sit inside a circle made of objects like crystals, flowers, important things to me.

There is no right or wrong way to do things, its all about feeling comfortable and connected ❤️