What is the ruling on saying, "I am going to see the face of my Lord" when going out for a picnic or a change of scenery?

The phrase mentioned in the question is not meant to be taken literally, but rather refers to contemplating God's creations. Nevertheless, expressing it in this way is a grave error, as it might suggest a false understanding. And if one believes in the false meaning, which is pantheism (hulool), then it is outright disbelief (kufr sareeh).