To receive payments from your site, you need to add a bank account to your Stripe dashboard.
Go to your business settings, by clicking on the cogwheel at the top right of the screen, then Settings > Business and click on the Bank accounts and currencies tab, or click on this link.
Next, click on + Manage currencies, select the currency of your bank account, then on + Add a bank account.
You will be asked to confirm your identity before proceeding.
Finally, enter your bank details in the fields provided, then click on Add bank account to complete the operation.