Is it okay to put one stone lion?

No

The traditional Chinese large house with good customs is the courtyard house. High wall gate tower. If there is a good house door panel instead of iron nails, there will be a pair of lions outside the door. The lion is the king of beasts, strong and fierce. Therefore, using lions to guard homes and courtyards is the security guard of the home. The lion gates always come in pairs, both looking in, watching each other all year round. If the order cannot be made, it is unlucky. There are other sayings that they are called the two door gods and the two tigers guard the door. The temple is guarded by Vajras guarding the door. The Yinwang Temple is called Ergui guarding the door. It is said that the handle of the Nantian Gate in the sky is called the Four Golden Steels, which explains the function of the door and the guarding of the door gods. , all in pairs, not singles. It is the feng shui of the door that is in pairs.