A connection is how Opal manages individual resources and permissions. Once the connection is established once, Opal will automatically import existing and new resources
For example, if you add an AWS connection, then Opal will automatically import the RDS databases, EKS clusters, IAM roles, and EC2 instances as resources within the AWS account.
Alternatively, if you add an Okta connection, then Opal will import different groups as resources within the Okta account.
Resources are the individual permissions, applications, tools that you can request access to. For example, if you click into a Connection, you can see all the resources listed within it.