Hey fellow citizens, let's all put our money together in this big pot, and if any of us get sick, then we'll let the sick ones use the money. OK?
And we'll all chip in and put some more money in this other pot, and if anyone's house burns down, we'll buy them a new one.
Etc.
Socialism (from Wikipedia) : a society characterized by equal access to resources for all individuals with an egalitarian method of compensation.