Om = Pranav representing Parmatma
Aim = Mahasaraswati
Hrim = MahaLakshmi
Klim = Maha Kali
Chamundaye = Chamunda Devi
Vichhe = to untie
Meaning when combined- Mahasaraswati(Satwgun) MahaLakshmi(Rajogun) Mahakali(Tamogun) Swaroopa Maa adi shakti Chamunda Devi meri kundlini ki granthi ko khol den (Untie the knot of my Kundlini). This is the most simple interparteation of Navarnmantra and I really hate those who use this mantra in TV serials as a evil or marka mantra.
chetandhiman got a reaction from Raveena in Navarna mantra