Wherever you may be, you can pray anywhere. Only show good will, and neither place nor time will be a hindrance for you. And although you might not be bending your knees nor beating your breast, or raising your arms to heaven, but have merely displayed a fervent soul, by this you will have fulfilled everything necessary for prayer…God does not regard the place. He desires only a sincere heart and a meek soul.
–Saint Basil the Great (330-379)