I learned about DEX with @lens/shefi but this is something I'm still not comfortable with because I don't und…

I learned about DEX with @lens/shefi but this is something I'm still not comfortable with because I don't understand it in the transaction context. I want to understand more about tokens, when to use services like @lens/uniswap in the transaction and why it's important to use DEX. I look at the list token available to swap and feel overwhelm. I feel that this is still a work in progress.