en_tn_lite_do_not_use/1co/15/32.md

I fought with beasts at Ephesus

Paul is referring to something that he actually did. Possible meanings are 1) Paul was speaking figuratively about his arguments with learned pagans or other conflicts with people who wanted to kill him or 2) he was actually put into the arena to fight against dangerous animals.

Let us eat and drink, for tomorrow we die

Paul concludes that if there is no further life after death, it is better for us to enjoy this life as we can, for tomorrow our life will end without any further hope.