Buddha, Bodhisattvas or Arahat are the titles, where one attains
different levels of enlightenment.
There are 41 levels of Bodhisattvas and 4 levels of Arahat..etc,
similar to a Doctorate, Masters degree, Bachelors Degree, Diploma...etc.
There is no supreme level of Buddha-hood.
In the Diamond sutra- Buddha (Siddhatta Shakyamuni) said there is no
ultimate point to achieve Buddha-hood. There is no fixed way to attain
such level, there are 84,000 different ways; each and every way leading to