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## Chapter 250
The **Ādipurāṇa** states that a **Brahmacārī** should not sleep on a cot or bed, nor should he rub his body against another's. He should sleep alone on the ground to maintain the purity of his vows.
He should observe this vow until he completes his studies. After that, he should observe the vows that are the foundation of householders.
He should learn the **Śrāvakācāra** from the mouth of his Guru and then, with humility, study the **Ātma-śāstra**.
He should also study **Śabda-vidyā** (grammar) and **Artha-śāstra** (logic) to awaken good qualities and attain scholarship. There is no fault in studying these subjects after acquiring knowledge of **Ācāra**.
He should also study **Jyotiṣa-śāstra** (astrology), **Chanda-śāstra** (prosody), **Śakuna-śāstra** (omens), and **Saṅkhyā-śāstra** (mathematics) in particular.
This is the fifteenth **Vrata-caryā** (practice of vows).
After this, the **Brahmacārī** who has completed his studies undergoes the **Vrata-avtarana** (descent of vows). In this ceremony, he continues to observe the ordinary vows but abandons the special vows he had taken during his studies.
After this ceremony, he takes the vows of **Madhu-tyāga** (abandonment of honey), **Māṁsa-tyāga** (abandonment of meat), **Pañcodumbara-varjana** (abandonment of five Udumbara fruits), and **Hiṁsādi-virati** (abandonment of the five types of violence). These vows are to be observed for life.
This **Vrata-avtarana** ceremony should be performed after twelve or sixteen years, with the Guru as a witness and with the worship of **Jineśvara**.
It is appropriate to honor the **Dvijas** (twice-born) first and then perform the **Vrata-avtarana**. After the ceremony, it is appropriate to accept clothes, ornaments, and garlands with the permission of the Guru.
If he is a **Kṣatriya** (warrior), he can wear weapons for the protection of his livelihood or for adornment.
In this way, although he descends from the **Bhoga-brahma-vrata** (vow of abstaining from sensual pleasures), he still observes the **Kāma-brahma-vrata** (vow of abstaining from sexual desire) until he is married.
This is the **Vrata-avtarana**.
One should take a purifying bath in water.