

Stand on the pedestal with no armor, weapons, or anything else to speak of, during a Blood Moon.(If it is the night before the blood moon and you use a fire weapon to light the wood and rest until night without removing the fire weapon, the weapon factor will be ignored) You will want to equip the Climbing Gear set if you have it, and you will most likely need food that increases or recovers stamina to make it to the top if you haven't enhanced your stamina wheel.

Otherwise, climb the other, shorter mushrooms, making your way up and hope it doesn't rain. If you've enhanced your stamina bar twice, you'll be able to make it with stamina to spare. Just climb to the top of the mountain from that shrine then paraglide west over to the tallest pillar Kass is on from there. It's actually very easy to reach in less than two minutes from Mogg Latan Shrine on Satori Mountain to the southeast. Kass has a hut on top of the tallest mushroom-shaped pillar here.
