The Grandfather archetype represents the sky, the all seeing, and all knowing, wise part of yourself.
The Grandfather can sometimes represent God. This dream may be an opportunity to grapple with your feelings toward God, male elders, or about aging.
(2) In a man’s dream it may be a Wise Old Man figure.
See also: Wise Old Man/ Woman, Grandmother, and Introduction, pages 49-50. [2]
The all-powerful Father or the archetypal father, in contrast to the personal father.
The father principle. [3]
A grandfather in one’s house in a dream represents one’s own father. Therefore, any interpretation relative to one’s father should apply here. Ifone’s grandfather dies in a dream, it means loss of one’s determination and will.