You need to acquire Sternness of Stone and Keenness of Tiger if you want to progress in chapter two of Black Myth: Wukong and open the gate leading into the centre of the Yellow Wind Ridge. If you've already beaten the King of the Flowing Sands and the Second Rat Prince, you've likely investigated the glowing statue at the end of their arena. However, when you try to activate it and open the massive gate nearby, it says you need the two items mentioned above.
It's unclear what they are, but the good news is that they're items you can acquire in the surrounding area by completing a couple of bosses. If the Yellow Wind Ridge has you feeling a little turned around, I'll explain where to get Sternness of Stone and Keenness of Tiger, plus how to reach each location.
To get Sternness of Stone you have to defeat the Stone Vanguard boss in the Fright Cliffs. If you went into the Valley of Despair after fighting the King of the Flowing Sands and Second Rat Prince, then you're heading in the wrong direction. From where you fought them by the Valley of Despair Keeper's Shrine, you need to:
You'll spot a cluster of floating stones ahead of you, and when you approach, the Stone Vanguard will appear. This boss is pretty easy if you stick to its backside, but you should watch out for the follow-up shockwave from its two-handed downwards slam, since it's easy to get caught off guard once you've dodged the initial attack. Take it down and you'll get the Sternness of Stone item.
Now, to get Keenness of Tiger you need to defeat the Tiger Vanguard boss who is in the opposite direction from the previous. From the Valley of Despair Keeper's Shrine, you should:
Inside you'll find the Tiger Vanguard boss. This guy is a bit tougher than the Stone Vanguard since he periodically uses the Rock Solid spell to turn himself invulnerable. The two attacks you need to watch out for are when he slightly unsheathes his sword before performing a fast lunging slash towards you, and when he turns to stone in the middle of the arena before suddenly coming at you with a charged punch. Defeat him and you'll get the Keenness of Tiger item.
Now you have both, you can use the Tally to unlock any doors leading to the centre of the Yellow Wind Ridge, including the one back at the original King of the Flowing Sands arena, plus another in the centre of the Crouching Tiger Temple.