Consider this: There are two fish lying on dry land a few hundred feet apart from each other - each fish thinks to himself, “I am the only fish in the universe”. Then, someone adds water, a medium that allows the fish to swim around and meet each other, interacting, and socializing.
The fish lying on dry land are like life without a body, they lack a medium that allows them to interact with each other.
In conclusion, life may be able to exist without a body, it is conceivable to use some different medium to connect living entities together - but for our world, at least,
life has chosen its medium as that of “bodies” which allow
all living entities to connect, interact, and socialize together.