All I can tell you is that there is a real quickness with his passing and there is also a blockage that I see. The arterial blockage is the the physical cause of your father's passing.
Was dad sort of a stubborn man and a little hard to convince to take care of himself?
He is safe and happy. You have been procrastinating about moving forward in your life and that does not make him happy. Please move forward he says, I will be with you. He is showing me Septemeber ... is there something special for him or you in Septemeber? Please know your father is well.