Men will die and something will happen to our soul
Jesus view on death.
“Do not fear those who kill the body but are unable to kill the soul; but rather fear Him who is able to destroy both soul and body in hell.
“Death is simple a transition to a different mode of existence; it is not, as some tend to think, extinction.” - Millard Erickson, Christian Theology pg 1073
“But for the cowardly and unbelieving and abominable and murderers and immoral persons and sorcerers and idolaters and all liars, their part will be in the lake that burns with fire and brimstone, which is the second death.”
Blessed and holy is the one who has a part in the first resurrection; over these the second death has no power, but they will be priests of God and of Christ and will reign with Him for a thousand years.
“Behold, all souls are Mine; the soul of the father as well as the soul of the son is Mine. The soul who sins will die.
Death for the righteous is a great reward but death for the wicked is punishment and the second death.
After death the soul goes into a state of unconsciousness.
This view stems from taking sleep literally in passages talking about death.
But we do not want you to be uninformed, brethren, about those who are asleep, so that you will not grieve as do the rest who have no hope. For if we believe that Jesus died and rose again, even so God will bring with Him those who have fallen asleep in Jesus. For this we say to you by the word of the Lord, that we who are alive and remain until the coming of the Lord, will not precede those who have fallen asleep.
Problems: Existence seems to be implies between death and resurrection.
And He said to him, “Truly I say to you, today you shall be with Me in Paradise.”
The Catechism of the Catholic Church defines purgatory as a "purification, so as to achieve the holiness necessary to enter the joy of heaven," which is experienced by those "who die in God’s grace and friendship, but still imperfectly purified" (CCC 1030). It notes that "this final purification of the elect . . . is entirely different from the punishment of the damned" (CCC 1031).
Those who leave earth in a state of spiritual perfection go right into God’s presence but those who still have sins (venial) must suffer for purities sake.
This is why Catholics pray for the dead. They are literally working off the debt the person owes.