The conditioned being is content with his lot regardless of the species to which he belongs. Misled by the influence of the illusory energy that covers his vision, he is hardly inclined to abandon his body, even if he lives in hell, for he delights in the basest pleasures.
What differentiates real and absolute good and evil? What are their true definitions?
In truth, good and evil do not exist.
In reality, in the material universe where man evolves, good and evil are on the same plane, conflated, and a projection of the mind. Each person starts from a personal, erroneous concept, puts them into action, or defines them according to their own sensibilities, their notion of reality, and the values that drive them.
Thus, a thief finds it normal to steal and disregards the reaction of the owner of the stolen object. For the thief, his action is just and right. This is true for all human beings, who are ignorant of the true notion of Good and Evil and continually confuse them.
In reality, Good and Evil are defined in relation to Krishna, God, the Supreme Person. Since the Lord is the Absolute Existence, the Absolute Abode, the Absolute Truth, and the Absolute Life, we must understand that the entire cosmic universe dwells in Him, as do all spirit souls. By virtue of His supreme, infinite, and absolute position, Lord Krishna is in fact the owner of all that exists, and the sole beneficiary of all the fruits resulting from all the works of the souls residing both in the spiritual world and those who have incarnated in the material universe.
Because of this truth, it is easy to understand that the true notion of Good and Evil is defined in relation to God, Krishna, for He is the pure essence and the only reality.
Absolute Good is none other than Krishna Himself. Absolute good is taking pleasure in loving Krishna, God, the Supreme Personality, in making Him happy, in loving to please Him, in singing wonderful hymns for His joy, in offering Him all the fruits of our works, in surrendering ourselves completely to Him, and in taking enormous pleasure in serving Him with love and devotion.
Absolute evil is the very opposite of absolute good.
It is not loving Krishna, God, the Supreme Personality, not wanting to listen to Him or do what He says, it is rejecting or denying His authority, it is distancing oneself from Him, it is doing the exact opposite of what He says, it is ignoring His existence, or worse, it is identifying with Him, taking oneself for Him, believing oneself to be a god, in short, it is envying Him.
Why does Krishna, the Supreme Personality of Godhead, allow massacres to take place?
In truth, Krishna, the Supreme Personality of Godhead, allows killings or massacres to take place, but does not authorize them.