CTRL-O and CTRL-IJumping back to previous position is a critical and often forgotten Vim skill. While it is a Vim-ism, it’s an important one. The CTRL-] is discussed on the first :h page in Vim as is the CTRL-O to go to the previous position, but what isn’t generally covered is that CTRL-O is also the way to return from a gd that jumps to the position a given symbol is defined in the source code. Using CTRL-I after returning allows toggling between the two location (ex: the definition of the thing and the use of the thing) very quickly.