The Great Renunciation: But at the age of 29, still preoccupied with the questions of Old age, sickness and death, symbollically representing human sufferings in general, he left to search for a means of salvation.
For some years he tested and rejected radical physical ascetisim and abstract philosophy. Finally, in a single night of intensive meditation he achieved Enlightment and evolved his own unique diagnosis and Teaching (Dharma). The prior day, he had replied Mara of Ten Paths towards evil.
Lust
Dislike for higher life
Hunger and Thirst
Craving
Torpor and Sloth
Fear
Doubt
Hypocrisy and Obduarcy
Gains and False Glory
Exalting Self and Despising Others
If one was able to conquer these one would win bliss. When Siddharata became the Buddha, through Enlightenment, he attained Nirvana and was translated to the higher plane, while his body continued to exist, because of Karmic residues. And when he died, he became truly impalpable, without form or appearance. 
