In Hollow Knight Silksong one of a crucial skill that you will have to learn is wall jump. The main reason is that each location o the map is interlinked with each other, so there are points in the game where to proceed further, you need to wall jump, or you can also say Cling Grip.
After playing the game, here is a guide on how you can unlock it and how to master wall jump in Hollow Knight Silk Song.

How To Unlock Cling Grip (Wall jump) In Hollow Knight Silk Song
To get wall jump in Hollow Knight Silksong you need to reach the Weaver Shrine that I have marked on the map below. So where ever you are just try to reach this location.

Getting to weaver shrine won’t be easy, along the way you will have a boss fight against Sister Splinter before you reach the shrine. Interact with the shrine to get the ability to wall jump in Hollow Knight Silksong.

How To use wall jump (cling grip) in hollow knight silksong
The cling wall ability will allow you to hold on to flat surfaces and also jump off them. This will explore new areas for you that were hidden for you before. To use Wall jump simply press jump button and then hold it to cling to the wall.

The Cling Jump ability will unlock the following as well
- You can go inside Bellhart
- Skull Tyrant’s Quest
Also make sure to explore the previous area where you couldn’t reach because of no all jump ability.