Having money is as simple as going to the river to fetch water. Money is as abundant as water on the earth.
If you think of money as currency, you will remain in lack. Your money is in you, locked up in your belly.
It is your gift, and you become rich when it flows from within you to bless others. The secret is the desire to always give. Others lack what you carry, and you are the source.
Supplying them with your riches selflessly is what makes you rich in money and in other ways.
See also: What does it mean to be rich