Psalm 134:2
“Lift up your hands in the sanctuary, And bless the LORD.”
The lifting of the hands are an expression of praise and your love for God. Like a child extending their arms, wanting to be picked up by their parent - they can’t resist; God feels the same way.
It is also a sign of surrender.
Surrender your heart, dreams, pain, fears, give it all and you will see a supernatural power that heals all the above. Abraham lifted his hands to the Most high God, do the same and you will see miraculous things happen.