The moment a soul atman manifests human form for the first time, it has already manifested 7.3 million bodies in insect plant and animal life. The cosmic journey of a soul atman started when it manifested form of an amoeba (the first manifestation) in cosmic life cycle.
In human form itself exist 1.1 million manifestations in human form before a soul atman permanently releases itself from all dross impurities within. For a soul atman to reach state of absolute purity human beings need undergoing a maximum of 1.1 million manifestations in human form. Only then a soul atman gains release from cycle of birth and death forever.
Truly enlightenment is not that easily achieved, prime reason why in the last about 150 years amongst 700 million people existing world over only Sri Ramakrishna Paramhansa and Maharshi Ramana succeeded in gaining enlightenment in their lifetime.
For becoming a fully enlightened one we have to negate karma to zero. The moment dross impurity within soul atman reduces to zero; the need for it to manifest another body ceases to exist. The moment that happens one finally becomes an enlightened one, a fully enlightened state.
Before reaching state of absolute purity, a spiritual traveler keeps indulging in spirituality to remove dross impurities within. In the last stages of spiritual pursuit all seekers need practicing absolute celibacy for a minimum period of 12 years in continuation. This paves way for reaching state of 100% mental purity, a state when not a single thought entered our brain uninvoked. The moment a seeker reaches this state one finally gains enlightenment forever.
Once fully realized, nothing could be reverted back. All gains on path of spirituality towards enlightenment were always permanent. If for any reason one gets diverted, the whole process of practicing celibacy needs to be repeated. Sage Vishwamitra a highly accomplished sage of his era on sighting a maiden woman taking bath in forlorn circumstances in deep dense jungles (forests) fell from grace, he had to repeat practice of absolute celibacy all over again.
The practice of 12 years of absolute celibacy was indulged by Mahavira, Gautama Buddha even Jesus Christ and Prophet Mohammed. And so was by Sri Ramakrishna Paramhansa and Maharshi Ramana. Full enlightenment means reaching level 100. If we stood at 99 it would be termed partial enlightenment. When Swami Vivekananda left his mortal frame he was partially enlightened. He could have gained full enlightenment under able preceptorship of Sri Ramakrishna Paramhansa but he politely refused.
Goal of life for Swami Vivekananda was community service. He abandoned the thought of full enlightenment for next manifestation.
Full enlightenment announces one becoming a Mahavira, Gautama Buddha Jesus Christ or Prophet Mohammed in real life. Full enlightenment was also gained by Sri Ramakrishna Paramhansa and Maharshi Ramana.
It is a big anomaly that most human beings, seekers world over indulged in teachings of Mahavira, Gautama Buddha, Jesus Christ, Prophet Mohammed even Sri Ramakrishna Paramhansa and Maharshi Ramana yet, none ever wanted to become one. Mahavira (24th Tirthankara of Jainism) always rightly said, become a Mahavira, a Jina before imparting teachings of spirituality to mankind. But in present times we find hordes of so-called spiritual teachers’ imparting teachings of spirituality to gullible mankind.
Those who themselves had yet to reach state of enlightenment, how could they indulge in teachings of any kind? Only a fully enlightened soul could correctly impart teachings of spirituality to humanity.
Indian spirituality says inside every human being lay seeds of spirituality following which every single human being on mother earth could become a Mahavira, Gautama Buddha Jesus Christ or Prophet Mohammed. We all have to become an enlightened one one-day.
What use impractically following teachings of enlightened ones to no avail? Praying to or worshipping enlightened ones was not the solution, becoming one was!