Some hymns were not about magic spells and charms, but prayer qua prayer and philosophical speculations. The contents of the Atharvaveda contrasts with the other Vedas. The 19th century Indologist Weber summarized the contrast as follows, Jan Gonda cautions that it would be incorrect to label Atharvaveda Samhita as mere compilation of magical formulas, witchcraft and sorcery. While such verses are indeed present in the Samhita layer, a significant portion of the Samhita text are hymns for domestic rituals without magic or spells, and some are theosophical speculations such as "all Vedic gods are One". Additionally, the non-Samhita layers of Atharvaveda text include a Brahmana and several influential Upanishads. Samhita Surgical and medical treatment The Atharvaveda includes mantras and verses for treating a variety of ailments. For example, the verses in hymn 4.15 of the recently discovered Paippalada version of the Atharvaveda, discuss how to deal with an open fracture, and how to wrap the wound with Rohini plant (Ficus Infectoria, native to India): Charms against fever, jaundice and diseases Numerous hymns of the Atharvaveda are prayers and incantations wishing a child or loved one to get over some sickness and become healthy again, along with comforting the family members. The Vedic era assumption was that diseases are caused by evil spirits, external beings or demonic forces who enter the body of a victim to cause sickness. Hymn 5.21 of the Paippalāda edition of the text, for example, states, Remedy from medicinal herbs Several hymns in the Atharvaveda such as hymn 8.7, just like the Rigveda's hymn 10.97, is a praise of medicinal herbs and plants, suggesting that speculations about the medical and health value of plants and herbs was an emerging field of knowledge in ancient India. The Atharvavedic hymn states (abridged), Spells and prayers to gain a lover, spouse The contents of Atharvaveda have been studied to glean information about the social and cultural mores in Vedic era of India. A number of verses relate to spells for gaining a husband, or a wife, or love of a woman, or to prevent any rivals from winning over one's "love interest". Speculations on the nature of man, life, good and evil The Atharvaveda Samhita, as with the other Vedas, includes some hymns such as 4.1, 5.6, 10.7, 13.4, 17.1, 19.53-54, with metaphysical questions on the nature of existence, man, heaven and hell, good and evil. Hymn 10.7 of Atharvaveda,