Variations on a theme
"resume own navigation direct XXX" - Go present position direct to XXX then flight planned/instructed route.
"resume own navigation XXX" - rejoin flight planned/instructed route at earliest point before XXX
"resume own navigation FOR XXX" - (usually as you leave CAS) Go on your own navigation for XXX and it is your own responsibility how you get there (e.g terrain clearance and avoiding danger areas).