Really interesting answer @Odanye.

Money is any item or verifiable record that is generally accepted as payment for goods and services and repayment of debts in a particular country or socio-economic context,or is easily converted to such a form. The main functions of money are distinguished as: a medium of exchange; a unit of account; a store of value; and, sometimes, a standard of deferred payment. Any item or verifiable record that fulfills these functions can be considered money.

For me, money represents peace of mind.

It means I can pay my bills, put food on the table and don’t have to owe anyone. Having money in the bank means I don’t have to worry about money. I only worry about money when it is running low or looking a little uncertain. Simply, it helps me to sleep without worries. Peace of mind.