The soul is immortal and it is the soul therefore which goes either to heaven, hell or purgatory when one dies. Purgatory is a place where the souls of the just are detained and purified for a time after death on account of their sins, as "nothing defiled can enter heaven." (Revelation 21:27)
It is something the Church has always held to be true but was denied by the Protestant reformers.
Look for Catholic groups to explain this one. I am Christian and believe Catholics invented the concept of purgatory so they could convince people to pay the church to reduce the sins of their dead loved ones and make the wait to get into heaven shorter.
There is no evidence to support the existence of a soul, heaven or hell.
Please stop believing every story someone tells you.
What is the purgetory?