Spiritually, allegorically Adi Shesha represents the ever existing kundalini shakti, the most powerful of all energies made available to mankind by grace of God Almighty. It is this kundalini shakti that makes a human being, an ordinary mortal reach the status of a man God like Mahavira, Gautama Buddha even Jesus Christ or Prophet Mohammed. In absence of kundalini awakening no human being could ever reach stage of self realization, god realization enlightenment. Human beings reached their full potential owing to kundalini shakti, Adi Shesha.
Kalki avatar, an ordinary human being manifests superhuman powers to eradicate ills from the society. Lord Krishna was also born ordinary but owing to extreme strife, tribulation manifest in the society and not in control of anyone Lord Krishna took upon himself the task of cleansing the society worldwide. Similar would be the fate of Kalki avatar.
Unable to bear the downward trend of society, one amongst us, a commoner one from masses becomes the guiding light of entire society. Because of superhuman powers manifest by one, people start calling him an avatar (God manifest in human form). And what are these supernatural powers manifesting which Kalki is what he is!
To cleanse the society of its ills, re-establishing Dharma (righteousness) is a monumental task, something people believed can only be done by a superhuman. This daunting task definitely seems impossible to masses but not to Kalki avatar. It can definitely be achieved by one, possessing willpower exhibited by Swami Vivekananda.
Every given moment of life human beings invoked both positive and negative thoughts. The precipitation of positive thoughts resulted in creation of Amrita (elixir of life) and negative thoughts precipitated into Vish (poison) in the body. It is only a self realized soul, an avatar who could retain the Vish (poison) in the body, the reason behind depicting body of an avatar as blue, dark in color. Both Shiva (an enlightened one, a self realized soul) and Lord Krishna depict blue body.
Ordinary mortals who could not handle the Vish (poison) accumulated in the body during partial kundalini awakening becoming sick, prime reason why people who indulged in kundalini awakening often complained of their inability to control this very volatile kundalini energy. The onus of controlling kundalini energy is totally ours; none can help in this matter, not even a spiritual master, guru. One must indulge in kundalini awakening with caution!
Even mortals who could channelize their kundalini shakti towards the only goal of life experienced totals success in whatever venture they entered. Examples of people like Bill Gates, Warren Buffett and JRD Tata and many more say the same story. All successfully channelized kundalini shakti towards the only goal of life! One who can handle Adi Shesha is an extremely lucky person. Reason being, handling of Adi Shesha is an internal process, something related to inner spiritual journey. Everything relating to spirituality always happened in our heart.
Instead of indulging in kundalini awakening, Adi Shesha theoretically we must become practical in our spiritual journey of life.