Nirvana is the state of enlightenment and this state is reached when one succeeds in controlling his sensorial feelings, his body and soul and when he perceives the truth about human life and conquers his cravings which cause pains and miseries.
Thus in Buddhism, there is no God who can reward a fidel with paradise or eternal life.
Each individual, through his own personal effort, must perform the deed himself.
As Lord Buddha said as he passed away to his disciple Ananda, “Decay is inherent in all compound things. Work out, Ananda, your own salvation with diligence.”
Buddha and his teachings help relieve human sufferings and lead these who are willing to make their own efforts to elevate themselves above earthly attachments and attain the final objective of ultimate and permanent state of serenity.
Nirvana, as I said, is the state when or where passion, aversion and confusion are extinct.
In the Buddhist belief, Lord Buddha is neither omnipotent, nor omnipresent nor omniscient.
Lord Buddha is not the creator of the world and Buddhism never talks about the creation of the world.
Lord Buddha said simply, “Don’t ask me this question, because if I were to discuss the creation of the world, others can advance other theories and we begin unending discussions.”
Lord Buddha was a simple human being who, in his long search for the truth, experimented with ascetism and body mortification but he found out that truth lies in the Middle Path, in moderation, self-discipline and self-control, control of the body and the mind.
In essence his teachings consist of what the Buddhists call the “Four Noble Truths”