"Yog-Sothoth knows the gate. Yog-Sothoth is the gate. Yog-Sothoth is the key and guardian of the gate. Past, present, future, all are one in Yog-Sothoth. He knows where the Old Ones broke through of old, and where They shall break through again. He knows where They have trod earth's fields, and where They still tread them, and why no one can behold Them as They tread."
Yog-Sothoth is an Outer God and is the embodiment of time and space across an essentially infinite number of space-time continuums, allowing him to be connected to the multiverse itself. Yog-Sothoth is said to be truly omniscient, surpassing even Yibb-Tstll in wisdom.
Yog-Sothoth is a limitless cosmic being that is connected with all of space and time yet is locked away from mainstream reality - the monstrous deity sees all and knows all and can impart knowledge to anyone foolish enough to seek its favor, which often required human sacrifice or worse and would ultimately bring calamity and ruin to the would-be-follower.
Yog-Sothoth's cosmic nature is stated in the following: It was an All-in-One and One-in-All of limitless being and self, not merely a thing of one Space-Time continuum, but allied to the ultimate animating essence of existence's whole unbounded sweep, the last, utter sweep which has no confines and which outreaches fancy and mathematics alike. It was perhaps that which certain secret cults of earth have whispered of as YOG-SOTHOTH, and which has been a deity under other names; that which the crustaceans of Yuggoth worship as the Beyond-One, and which the vaporous brains of the spiral nebulae know by an untranslatable Sign...