Navigation is performed using the Vi key bindings hjkl. page 
(Spacemacs documentation)
| Key Binding | Description |
|---|---|
h |
move cursor left |
j |
move cursor down |
k |
move cursor up |
l |
move cursor right |
H |
move cursor to the top of the screen |
L |
move cursor to the bottom of the screen |
SPC j 0 |
go to the beginning of line (and set a mark at the previous location in the line) |
SPC j $ |
go to the end of line (and set a mark at the previous location in the line) |
SPC t - |
lock the cursor at the center of the screen |