I bow and wership all the gurus behaind this meditation first ....
Please don't do Kundalini Yoga meditation many people get mentally ill because of it. Instead of it I prefer this. I know how to do kundalini meditation correctly but may people teach it wrong and innocent people get mentally ill. Instead of It I prefer you this very safe meditation. I have experience don't be a afraid to do this at all :)
You can look at external orange red object and close your eyes. Imagine that color through your mind. No need to do kundalini yoga just imagine a pure orange red light and imagine it for hours and be relax. Don't spread your mind or think about anything keep your mind in absorption or composure on the red light.Don't think about anything just think about the red light and be calm.You can look at the imagination red light and tell from your mind red red or "Lohitha khann" persistently and relaxly to keep the concentration on a one spot.If you don't like to do that ignore it. you must be calm and relax when you imagine it. in practice it will take you to arupa dhiyana or separate from your body from mind. ya it will separate and you will fly in outer space ( it's inside our mind) No need to be afraid when you want you can concentrate to your body and come back to your body again. You need to connect that trance and get practice and make common in enter to it and coming to body, when you practice you can do it quickly in minutes.stay in that black space in your mind for less than a half a hour after you practice. You can stay there and wish to open your third eye vision this is the only way a person can open the third eye. No one can open third eye through music manthara, Any meditation will take you to composure and take you to this place of calm space. From there,,,,,there are few traces to observe they are 4 I don't know how to achieve them but I know how to go to there and I have known when you stay in that space place you will automatically connect with the other trances. Give a try ( orange red color )
Concentration calmly is the key point.
Teach this to many as you can.