database involved in availability group - showing state as online but it is synchronizing and does not accept connection - how can I find that out?

how can I find the list of databases I actually can connect to? I am using sys.master_files to check the state of my database files however, on the secondary, the database is synchronizing and it is showing as ONLINE I cannot do this: use my_database and I cannot do this: select * from my_database.sys.master_files > Msg 976, Level 14, State 1, Line 364 The target database, 'my_database', > is participating in an availability group and is currently not > accessible for queries. Either data movement is suspended or the > availability replica is not enabled for read access. To allow > read-only access to this and other databases in the availability > group, enable read access to one or more secondary availability > replicas in the group. For more information, see the ALTER > AVAILABILITY GROUP statement in SQL Server Books Online.