He spent six years trying various techniques a following many believes that prevailed in India at that time. 

• He first tried meditation, which he learned from two teachers. He felt that these were valuable skills. However, meditation could not be extended forever. 
• He eventually had to return to normal waking consciousness and face the unsolved problems relating to birth, sickness, old age and death.
• He then joined a group of similarly-minded students of Brahmanism in a forest where he practiced breath control and fasted intensely for six years. He is said to have brought himself to the brink of death by only eating a few grains of rice each day. Some sources say that he consumed only a spoonful of bean soup per day. This technique produced a series of physical discomforts.  
• Ultimately, he rejected this path as well. He realized that neither the extremes of the mortification of the flesh or of hedonism would lead to enlightenment. He determined that a better path to achieve the state of Nirvana - a state of liberation and freedom from suffering - was to pursue a "Middle Way." This way was largely defined by moderation and meditation.

Austerities

During these six years he first spent time with and practiced the systems of meditation taught by two leading ascetics of the time. Although he mastered their respective systems, he felt that here he had not found any real answer to the problem of human suffering. So next, in the company of five other wandering ascetics, he turned to the practice of severe austerities. The old texts preserve a hauntingly vivid description of the results of this practice:

"My body reached a state of extreme emaciation. Because of eating so little my limbs became like the jointed stems of creepers or bamboo; my backside became like a buffalo’s hoof; my backbone, bent or straight, was like corded beads; my jutting and broken rafters of an old house; the gleam of my eyes sunk deep in their sockets was like the gleam of water seen deep down at the bottom of a deep well."

Finding the right path

But despite his grueling penance he again felt he had not found what he was searching for. Then he recalled an experience from his youth. One day seated quietly beneath the shade of a rose-apple tree his mind had settled into a state of deep calm and peace. Buddhist tradition calls this state the first meditation or "dhyana." As he reflected, it came to the Bodhisattva that it was by letting the mind settle in to this state of peace that he might discover what he was looking for.

This required that he nourish his body and regain his strength. His five companions thought he had turned away from the quest and left him to his own devices.