Well, I am in the coffin in the church or the temple, right?
Your body is not you. If we trust ourselves to Jesus, He will decide where we will be spiritually, while our bodies are wherever. People can kill our bodies and put them wherever they do, but they can't control where our souls will be.
Do you know the scripture where Jesus says enemies can kill your body, but that is all they can do?
So I can get angry for overruling my wishes before I go, and then I will be barred from entering heaven. So, bit of a risk.
No, now is our time to get with God, so wrong people can not get power over us.
"the wrath of man does not produce the righteousness of God." (in James 1:20)
So, now is our time to be changed by our Heavenly Father so evil people can not get us angry in a bad way.
So, you are right that unforgiving and nasty and abusive anger is wrong; but we have God as our Father to deeply correct us so wrong stuff can not get the better of us. And do not fear wrong people.
there are a lot of people who have testimonies about feeling the presence of the deceased at funerals. Who knows. A gamble with the soul that way.
Yes, ones might feel people the way they experienced them. But may be you already know how you can feel a person a certain way, but then find out that is not the way that person really is . . . right? So, they might be feeling some deceiving spirit, and not how that dead person really was. And God might have taken that person somewhere else. Making things up can't change that.
Plus, by the way, you have said you don't trust a lot of these people you know; so why trust what they say? And in case you do not really know someone who tells you some thing . . . we do not need to assume what they tell us.
"Test all things; hold fast what is good." (1 Thessalonians 5:21)
And I do not think it is a good energy if people who I resented come, or who resent me. I believe such emotions are kind of like anchors that will keep you from going to heaven. Your soul might lose focus. Your heart may fail your soul.
Again, like I say, we need to get with God now, so evil people can not have power over us.
"And who is he who will harm you if you become followers of what is good?" (1 Peter 3:13)
In our basic Christianity, we confess how Jesus Christ is God's own Son and Jesus is the Lord of all. This means He rules with all good power over all; so we trust Him to decide what happens to us. And the best benefit of Jesus Christ's rule is how He rules us in His own peace in our hearts >
"And let the peace of God rule in your hearts, to which also you were called in one body; and be thankful." (Colossians 3:15)
And this peace almighty protects our minds and hearts > while we are subject to God and pray the way He has us praying >
"the peace of God, which surpasses all understanding, will guard your hearts and minds through Christ Jesus." (in Philippians 4:6-7)
So, don't trust stuff that tells you otherwise. You say you won't let people use lies to get into your house. Well, do not allow anger and unforgiveness and fear to use lies to get into your heart and mind! Do not trust that; trust how our Heavenly Father personally rules each of us in His own peace >
"'Take My yoke upon you and learn from Me, for I am gentle and lowly in heart, and you will find rest for your souls.'" (Matthew 11:29)
Therefore, with Jesus we can refuse to let wrong people and wrong emotions get power over us. And learn how to love God's children as family. There are people of this evil world who do not know how to love. But we grow with each other and we offer our example to help evil people to become adopted as God's children.
Jesus died with hope for evil people to be saved and to join us; because Jesus is so greater and yet He is not conceited, so He has hope for any evil stubborn impossible person. Love
"hopes all things" (in 1 Corinthians 13:7).
So, yes we have failed to obey this. But now God is able to bring us through real correction so we may share with Him and with one another who are His caring and sharing family, and not lose hope for any of this world's evil people. But pray and bless.