This is going to be one of those times we will disagree. I think what you are suggesting is the camel's nose inside the tent, so to speak. In no short order it leads to by passing God and going straight to talking with the dead. Look at all the Mary "veneration". It probably started the same way.
Duet. 18:11-12 ...or a medium, or a spiritualist, or one who calls up the dead....are an abomination..
I Sam. 28:1-25
IChron 10:13
Isaiah 8:19
Whatever awareness of this world the saints in heaven possess is exactly as God wants it to be. No more and no less. And that's not for us to know.
It's enough for us to know our loved ones are with Him and eternally happy, as we will be one day.
God is not dead.
Neither is a deceased Christian. “I am the resurrection and the life; though a man die, yet shall he live; and whoever lives and believes in me shall never died.”
And, I can pray for anything