Are the saints in heaven aware of us and able to pray for us?

Many people make the argument that the saints are no longer with us, unable to intercede for us, no longer able to pray for us or work miracles. But this is not a biblical understanding. Hebrews chapter 11 says, what more shall I say? For the time would fail me to tell of Gideon, of Barak, of Samson and Jephthah, of David and Samuel and the other prophets, who by faith subdued kingdoms, stopped the mouths of lions, quenched the violence of fire, were tortured, stoned, sawn asunder, wandered in deserts and mountains, of whom the world was not worthy.

And it says that God provided something better for us, that they should not be made perfect without us. Then chapter 12 begins: therefore, we also, since we are surrounded by so great a cloud of witnesses, let us lay aside every weight and the sin which so easily ensnares us, and let us run with patience the race that is set before us, looking unto Jesus, the author and finisher of our faith.

There was no mistake: the saints of the Old Testament, who had gone through all these trials and ordeals, were still present with the new Christians. The Old Testament church ministered to the New Testament church. We see this with Christ on Mount Tabor when he is transfigured: Moses and Elijah both come and stand alongside Christ. They are still present. The saints have not died and gone on and forgotten about us. It is the converse of that.