What does it mean to scatter rice, tea and beans in the house?

Rice, tea and beans were sprinkled in the house to ward off evil spirits. To ward off evil spirits, there has always been the following saying: evil spirits are yin and fear yang. So, first, exercise well, be aboveboard and upright, so that ghosts and gods dare not approach; Second, contact with religion, all orthodox religions advise people to be good, behave well, and ghosts and gods also retreat; Third, saliva, the essence of the human body, has a miraculous effect when encountering evil saliva (such as "Sou Shen Ji": catching ghosts in Song Dynasty); Fourth, jade, because China traditionally regards jade as a thing in the world in Zhong Ling; Five peach swords, Tai Chi symbols, Eight Diagrams mirrors, Buddhist scriptures, Vajra pestle, immortal buddhas, etc. Sixth, folk magic, such as Shi Sheng copper coins (Kangxi, Qianlong, etc. ), black dog, white cock, wormwood, red rope, five-color line, etc. Seventh, animal images such as dragons, phoenixes and liger also have a certain deterrent effect, such as animals popular in recent years; Eight, Shaqi, such as swords, weapons that have fought to kill the enemy, etc.