How did Kratos get to Midgard in God of War Ragnarok?

God of War Ragnarok might've quelled a lot of questions from the previous installment, but the reason behind Kratos' arrival at Midgard remains unanswered.

How did Kratos make it to Midgard in God of War?

The God of War Ragnarok ending and secret scene explained

What if Odin sent Heimdall to Midgard and fought Kratos instead of Baldur? - Quora

All Armor Sets - God of War Ragnarok Guide - IGN

God of War Ragnarök

God of War Ragnarök Ending Explained

God of War Ragnarök – Hands-on gameplay report – PlayStation.Blog

God of War Ragnarok Midgard artifacts, collectibles and Odin's Ravens - Polygon

Why is no one talking abt how kratos came to norse?Who saved him,how did he end up in norse?where's Faye? Can we get those answers in ragnarok? : r/GodofWar

How did Kratos end up in Norway?