Transcription
You are a Master of the Universe. Skeletor has conquered Castle Grayskull and declared himself ruler of Eternia. He learns that He-Man and his comrades have a cosmic key that can save the Sorceress and put a stop to Skeletor's plans to become a golden god.
Skeletor says Skeletor's victory is all that matters. He has no plans after Senate victory. He simply wants to win.
Later on, the Sorceress breaks down who and what Skeletor really is. After Skeletor has captured He-Man, he taunts him while also becoming introspective, saying Skeletor's goal of becoming Master of the Universe is fruitless, and not only because he loses in the end. Sequel baiting, another story that never came.
Skeletor's goal of ruling Eternia is fruitless because of how isolating it is. And because his quest to sit on the throne of Grayskull opened the great eye and become a god as an end point, there is a finality to it. When your end goal in life is to seek great power and not use that power toward some other end, the victory is empty.
When someone achieves some executive position, it might come as a great relief because they are no longer as susceptible to financial ruin or anxiety about paying the bills. But Skeletor, prior to taking the throne of Grayskull, clearly does not live in anything resembling poverty. He has an army at his disposal.
When someone achieves some higher office, they can do it for as long as it's satisfying and then retire early to write an autobiography or do high-paying speaking engagements. Skeletor can never retire. Following an armed coup, Skeletor shouts that the universe's power, which means he sees power not as a means to an end, but as an end in and of itself. He can rule Eternia, but what does that mean to a man like or draft infrastructure bills, summon Evil-Lyn and Beastman to propose new healthcare reform laws? His boldest actions will probably be rounding up rebels.
In the beginning of the film, his first decree is that anyone who doesn't pledge themselves to him will be destroyed. He makes no other decrees to the people of Eternia throughout the film. He has no plan after he takes over Eternia. Innocence to godhood, in other words, maintaining his rule will be his only focus. Dictators and power-hungry politicians, the great man that the Sorceress references. What power assembly so they can claim to be powerful? They treat that power not like a responsibility, but more like a sports championship. A champion doesn't do anything with his power except declare themselves the best the instant they receive it, and then spend the rest of the time defending their title.
To Skeletor and the great men, that is what ruling Eternia is: a championship that he sought, one with which he has no interest in doing anything else but defend, in this case, from rebellions. The throne of Grayskull will make him grow more and more isolated from everyone around him. The loneliness of evil.
Skeletor has contempt for everyone around him. His first words of the film are demanding a report from Evil-Lyn, but he speaks to her as if she were an animal. He says, "Report, Evil-Lyn." Speak like one talks to a dog. He incinerates another minion, shouts orders, and commands an army of completely faceless soldiers. He thinks nothing of them, but he keeps them around. He could rule from afar and barely interact with his underlings, but he chooses to sit on the throne and have his servants and assassins come to him. He's lonely.
Loneliness is referenced several times in the film. Skeletor requires distractions to keep himself from recognizing this in himself. Skeletor only tells this to He-Man, the person Skeletor sees as his opposite. But Skeletor also wonders if He-Man, though his opposite, is as lonely as he is. If the responsibility of being the hero of Eternia is as isolating as the burden of being the villain of Eternia.
Skeletor desperately wants He-Man to be as lonely as he is to justify his own loneliness. He-Man, however, is not isolated. He obviously has strong bonds with Teela and Man-At-Arms and very easily becomes friends with two people from Earth. This fact would undoubtedly drive Skeletor into an even greater depression if he had not been defeated at the end of the narrative.
This would have only gotten worse for Skeletor. Once he ascends to godhood, he would have been even more isolated from the people around him, as the commoners and even the evil henchmen can't possibly comprehend him. Relationships are built on mutual trust, and if Skeletor has no more equals, as he triumphantly announces during his "I am a god" speech, he will grow ever lowly err and subsequently fall even further into despair.
Someone with too much time alone and time to contemplate their own existence can often fall into a kind of existential ennui. Philosopher Blaise Pascal once remarked, "All of humanity's problems stem from a man's inability to sit quietly in a room alone." Relationships are a defense that keeps these thoughts away from us because if we are not alone, we don't have to spend as much time in our own heads contemplating the meaninglessness of our lives.
Skeletor has no one close to him. Evil-Lyn and his minions abandoned him in his time of need near the end of the film. His loneliness is only going to get worse if he defeats He-Man, arguably the most important relationship he has. Pascal said that one alternative to despair is to turn to God, but now that Skeletor is God, he is now the only person in existence for whom that is not an option, isolating him further.
Skeletor conquering Castle Grayskull, becoming a golden deity, and ruling over Eternia has an inherent, unavoidable problem: What now? What is he supposed to do with his life now that he has nothing left to do? If the goal one chooses for themselves to give their life meaning has a specific endpoint, then anything Skeletor does following his ascension is even more meaningless to him than the actions he took to distract himself from his loneliness and his inconsequential existence.
Shortly after his decree, he looks at the halls of Grayskull and says that he has waited so long for this moment, but then the moment is over. He wanted nothing except his victory, and now that he has his victory, he wants nothing and is nothing.
"Contained my rage for as long as possible, but I shall unleash my fury upon you like the clashing of a thousand waves. Begone, vile man! Be done from me, a transporter of gods! The golden god I am, untethered, and I rage knows no bounds!"