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## Mulachara
**Verse 220:**
The origins and paths of all living beings are to be known. Knowing all living beings, one should become free from doubt and perform one's duties.
**Verse 221:**
The number of earth, water, fire, and air beings is twenty-two lakh kotis, seven lakh kotis, three lakh kotis, respectively. This is known as the "Kula" (classification by species).
**Verse 222:**
The number of two-sense beings is seven lakh kotis, three-sense beings is eight lakh kotis, four-sense beings is nine lakh kotis, and plant beings is twenty-eight lakh kotis.
**Verse 223:**
The number of aquatic beings is thirteen and a half lakh kotis, birds is twelve lakh kotis, and reptiles is ten lakh kotis.