To mount EncFS encrypted folder, enter:
$ encfs ~/encrypted-folder ~/decrypted-folder<enter>
This commands mounts the encrypted-folder and decrypts it’s contents and data into the decrypted-folder. Any data you add into the decrypted folder will be encrypted as it is added into the encrypted folder.
Once you are done with working with your data, you can unmount the decrypted folder as stated here.