What does it mean to realize one's spiritual self?

To realize one's spiritual self is to know one's original and eternal position in relation to God, to know oneself to be an integral part of the Lord, and to know oneself to serve Him with love and devotion. Constant spiritual union with the Absolute through this service is called the perfection of existence.

What is it that drives man to sin, even against his will, as if compelled?

Upon contact with matter, the soul indulges without hesitation in all kinds of sinful activities, often against its will. It is compelled to commit sins without having desired them.

The Lord explains it in these words: It is lust alone. Born from contact with passion, then transformed into anger, it constitutes the devastating enemy of the world and the source of sin.

When will people understand that they must obey and serve God, Krishna?

When will people understand that to live in calm, serenity, prosperity, and peace, they must obey God, do what He says, and live according to His teachings?

When will people understand that if they want all their suffering to disappear, they must absolutely surrender themselves completely to God, love Him, and serve Him with love and devotion?

When will people understand:

If they stop having abortions,

If they stop having illicit sexual relations (outside of marriage),

If they stop eating meat, fish, and eggs,

If they stop using drugs and stimulants (alcohol, cigarettes, coffee, tea),

If they stop gambling,

If they stop extracting from the earth and marketing fossil fuel products (oil, gas, coal),

They will be pure, and will then obtain true freedom and enter into eternal life.

When will people understand that if they kill, they will be killed in turn?

Whoever kills will be killed in turn. This is karmic justice, infallible justice, which renders each person the punishment corresponding to their actions.