this is the best way i can explain it, if you still need help just ask and I will try to explain it differently
Many who are new to these meditatons as this question and it is difficult to answer so I will do my best. if you need me to describe it in a different way I will so just ask.
First inhale deeply place your tongue inbetween your teeth slightly and start to vibrate the english "th" sound like one would with the word "the". By doing this like it said in the video you should feel this vibration in the middle of your forehead where your third eye is located. Keep doing this for 1/3 of the exhale
Now for the "Oh" sound your tongue should still be vibrating inbetween your teeth. When doing the "th" sound your lips should be flat and only slightly opened. For the "oh" sound you should round your lips a bit like you whould to say for example "oh" again while still doing the vibration inbetween the teeth and exhale a bit harder. Do this for 1/3 of exhale now flaten lips again and do "th" again for the last 1/3 of the exhale.
Try this just rember keep your tongue inbetween your teeth and feel it in you third eye.
Well, normally if or when i used that vibration/mantra to open up my third eye, i pronounce the "o" part as like "oh", like TH-OH-TH. But to be honest, Mantra's really aren't entirely neccesary to use when meditating to open up a chakra. The best way and in this is in my own personal experience is, either 1 focusing on feeli ng the chakra, or directing your energy or awareness to that certain spot where the chakra is at, is enough on its own. Also the foudation meditating on the JOS, can be used as a way to breath in energy into your chakra, like chakra breathing, and that works pretty well too. Also visualizing your chakra as getting brighter or bigger, expanding or opening, while your meditating adds on to the effect.
