Mate there are so many ways and people find their own way for their own reasons at the right times.
Yoga can lead you in there through tension and relaxation and breath.

If you watch only your breath it works too.

There is a way also that you breathe in ever decreasing breaths in sync with the golden mean or the fibbriconni mathmatical pattern of life.

Whatever way you find,your going to benifit from heart and mind becomming more in sync.

My choice is different yet again and takes a certain amount of regimentation, theres no use me explaining it I cant but its called the Mer ka ba if you care to search and is from the wisdom schools of the middle east.

Another reported highest of meditations but from within yoga and from the north east in India/tibet etc is called Gayatri. It is split into three parts Mantra,Japa and Dhyana ,(the use of sacred phrases repeated)
It also incorperates finger positions, breathing and proper prounounciation of the sacred sounds as triggers and how to raise the kundalini through the gayatri meditation.
Kundalini is the life force or chi energy from within your reproductive system and if you can reverse this flow so it goes up your spinal column you will be in heaven mode. Gayartri is very involved and is from the Hindu and kristnas.
These types of meditations illuminate all those on the path of practice and produce the highest bliss, creativity and success.