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**Caste-based livelihood** is a type of livelihood. Seeing a Brahmin's son performing rituals like Homa correctly, a Muni knows that he is a Brahmin who has been in a Gurukul. Or, the Muni asks the father if his son performed the Homa rituals correctly or incorrectly. Hearing this, the father knows that the Muni must be from a Brahmin lineage, otherwise how would he know about these rituals? This is livelihood based on caste through inference. When the Muni himself clearly states his caste, this is livelihood based on caste through direct statement. Similarly, one should know about lineage, clan, profession, and craft.
If a householder is virtuous, he can provide a Sadhu with food that is **half-karma** in the context of livelihood based on caste. If he is wicked, he can insult the Sadhu and throw him out of the house.
**Lineage-based livelihood**
Lineage is related to the paternal side. Earning a living by mentioning one's own or another's lineage is lineage-based livelihood. Explaining lineage-based livelihood, the commentator says that a Muni entering a fierce lineage sees the householder's son engaged in the work of a guard and asks the father if his son is skilled in the deployment of foot soldiers. Hearing this, he knows that the Muni is born into a fierce lineage. When the Muni clearly reveals his lineage, saying "I am from a fierce or prosperous lineage," this is revealing the lineage through direct statement.
**Profession and Craft-based livelihood**
Agriculture and machine operation are considered professions, while sewing and weaving are considered crafts. Another definition is that what is learned by oneself without a teacher is a profession, and what is taught by a teacher is a craft.
Seeing many things related to profession and craft, knowing whether they are correct or incorrect through one's own skill, or stating it clearly, is livelihood based on profession and craft.
**Clan-based livelihood**
Clan means a group of wrestlers. Earning a living by mentioning one's clan skills is clan-based livelihood.