Whatever you experience outwardly, take it within yourself and say 'I'm happy because I'm happy. I'm happy because God is in my heart.'
Spirituality means seeking experience. Not just belief.
The secret of success is doing things not merely because they are popular, but because you deeply believe in them.
Feel that you are happy without any cause for happiness.
Until you've tasted it [anything], you can't really know it.
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.