"The source of all abundance is not outside you. It is part of who you are. However, start by acknowledging and recognizing abundance without. See the fullness of fife all around you. The warmth of the sun on your skin, the display of magnificent flowers outside a florist's shop, biting into a succulent fruit, or getting soaked in an abundance of water falling from the sky. The fullness of life is there at every step. The acknowledgment of that abundance that is all around you awakens the dormant abundance within. Then let it flow out. When you smile at a stranger, there is already a minute outflow of energy. You become a giver. Ask yourself often: "What can I give here; how can I be of service to this person, this situation?" You don't need to own anything to feel abundant, although if you feel abundant consistently things will almost certainly come to you. Abundance comes only to those who already have it. It sounds almost unfair, but of course it isn't. It is a universal law. Both abundance and scarcity are inner states that manifest as your reality. Jesus puts it like this: "For to the one who has, more will be given, and from the one who has not, even what he has will be taken away."*
* Mark 4:25 (New Revised Standard Version).
Eckhart Tolle, A New Earth - Awakening to your life's purpose, chapter "Finding who you truly are".
I remember reading this passage of the Bible some time ago when I started to read the New Testament, and thinking this was a very unfair statement from Jesus. Now, thanks to Eckhart Tolle, I understand the meaning.