My deepest and most heartfelt sympathies little Brother. I will pray for peace, strength, and comfort for you and your family.
I know that your not a religious person but try if you will, to imagine that as you are are saying goodby, God and all the angels with Him are joyously telling your grandfather hello.
I normally wouldn't light one up this late in the evening but I would be honored to join you this evening for a smoke. I'll go pick something out and "join" you on the porch.
God Bless