The new wine is a new way of thinking and believing that Jesus taught us.
But he has to “break” the old ways of thinking first.
For example, He tells about the Good Samaritan. Now this didn’t compute. Samaritans were not good, and Jesus is saying the Samaritan acted better than the priest.
So here Jesus is destroying group identity as means to salvation, as He often did. It seems that our dualistic minds want us to think that belong to this group or that group is something that God cares about. Jesus has to destroy these old wineskins (basically your brain with old ways of thinking) and create new, more open minds and hearts, ready to be filled with the Truth of God.
Another time was when Jesus said the last shall be first, and the greatest is the one who serves. Now he’s turning around role identities, totally confounding the only way people thought at a time. That breaks the old way of thinking, leaving open the non-dualistic teaching. Same way with the tax collector justified over the pharisee.
Then how about the Prodigal son? The son who did not sin ends up the one with the attitude problem. Breaking the old ways of thinking.
When He washed feet, he blew away the disciples. They had to learn how to accept kindness before they could understand Him. Again, they “flipped their lid,” so that New Truth may enter their new wineskins.
Alan