The two-fold goal of all human striving is the avoidance of pain, and the fulfillment of happiness.

The "kingdom of heaven" to which he referred was the state of God-consciousness, not the beautiful astral heavens that most people visualize, where virtuous souls go after death.

Happiness is like a plant: It must be watered daily with giving thoughts and actions.

Happiness is an attitude of mind, born of the simple determination to be happy under all outward circumstances.

Learn to live more in the Self. Come down a little bit to eat and talk as necessary.

Happiness is reverence for all life.

So what Jesus taught must be understood from the deepest level and that is one of the best sayings to show that he was talking in that way. In the book Revelations from Christ, I found out something that Yogananda said. That Jesus had said son of men and son of God, and people often misunderstand so sometimes the translations themselves are wrong for that reason. So when he said son of man he meant his human body and personality. When he said son of God, he meant the infinite Christ consciousness with which he'd obtained oneness.