Answer the question at the end by quoting:

As I Lay Dying is an American metalcore band from San Diego, California. Founded in 2000 by vocalist Tim Lambesis, the establishment of the band's first full lineup, which included drummer Jordan Mancino, occurred in 2001. As I Lay Dying has released six albums, one split album, and two compilation albums. As I Lay Dying's fourth studio album An Ocean
Although As I Lay Dying has stated on numerous occasions that all of the members of the group are practicing Christians, the band is usually described by media as being in the metalcore genre, not Christian metal. The band's lyrics do not focus on Christian themes the way many praise music bands do, nor do they treat their music as a direct extension of their private Christian worship or proselytizing efforts. For example, not once do the names God or Jesus appear in any As I Lay Dying song, nor do any of their songs explicitly invoke Christian doctrine or quote the Bible. Most songs tend to address broader spiritual concepts like existential angst or the struggle between reason and spirituality. Lyricist and lead singer Tim Lambesis has given mixed commentary on the subject: asked in 2008 if the members were "a Christian band" or "Christians in a band", Lambesis stated on the band's FAQ, "I'm not sure what the difference is between five Christians playing in a band and a Christian band, If you truly believe something, then it should affect every area of your life. All five of us are Christians. I believe that change should start with me first, and as a result, our lyrics do not come across very 'preachy.' Many of our songs are about life, struggles, mistakes, relationships and other issues that don't fit entirely in the spiritual category. However, all of these topics are written about through my perspective as a Christian." Furthermore, during an August 2010 radio interview on the Christian metal radio show The Full Armor of God Broadcast, Lambesis stated "I can only really write about what I'm passionate about in life, so naturally my faith, my belief in the teachings of Jesus and His resurrection come across in our lyrics." However, in later years, Lambesis showed an increasing philosophical skepticism towards Christianity and religion in general: Court documents stated Lambesis emailed his wife Meggan in August 2012, while on tour with As I Lay Dying, asking for a divorce and stating he "no longer believed in God". In explaining some of the lyrics from Awakened, Lambesis stated that his studies of theology had led him to the conclusion that "tradition and truth are often at odds with each other", and while he "didn't hate all religious belief", he was finding it "very difficult for to outline exactly who it is that's worth siding with." He also quoted the book Pagan Christianity by George Barna and Frank Viola, claiming that both "Protestant and Catholic denominations have poisonous roots". While on house arrest in July 2013, after being charged with soliciting his wife's murder, Lambesis published a blog post in which he obliquely confirmed his previous loss of faith in Christianity. However, since his arrest it has been reported that Lambesis "has spent much of the last year reevaluating what originally convinced him to abandon belief in God. After much brokenness and repentance he sees things differently, considers himself a follower of Jesus, someone submitted to the will of God." In 2014 Lambesis said that although they were marketed as a Christian band, the members privately considered themselves atheists. Former guitarist Nick Hipa calls these claims slanderous and defamatory.

Who was heir lyricist?

Lambesis stated "I can only really write about what I'm passionate about in life,

Answer the question at the end by quoting:

The Vedic period or Vedic age (c. 1500 - c. 600 BCE) is the period in the history of the Indian subcontinent intervening between the end of the urban Indus Valley Civilization, and a second urbanisation which began in c. 600 BCE. It gets its name from the Vedas, which are liturgical texts containing details of life during this period that have been interpreted to be historical and constitute the primary sources for understanding the period. The Vedas were composed and orally transmitted by speakers of an Old Indo-Aryan language who had migrated into the northwestern regions of the Indian subcontinent early in this period. The associated Vedic culture was tribal and pastoral until c. 1200 or 1100 BCE, and centred in the Punjab.
The commonly accepted period of earlier Vedic age is dated back to the second millennium BCE. After the collapse of the Indus Valley Civilisation, which ended c. 1900 BCE, groups of Indo-Aryan peoples migrated into north-western India and started to inhabit the northern Indus Valley. The Indo-Aryans were a branch of the Indo-Iranians, which--according to the most widespread hypothesis--have originated in the Andronovo culture in the Bactria-Margiana era, in present northern Afghanistan. Some writers and archaeologists have opposed the notion of a migration of Indo-Aryans into India. Edwin Bryant and Laurie Patton used the term "Indo-Aryan Controversy" for an oversight of the Indo-Aryan Migration theory, and some of its opponents. These ideas are outside the academic mainstream. Mallory and Adams note that two types of models "enjoy significant international currency" as to the Indo-European homeland, namely the Anatolian hypothesis, and a migration out of the Eurasian steppes. According to Upinder Singh, "The original homeland of the Indo-Europeans and Indo-Aryans is the subject of continuing debate among philologists, linguists, historians, archaeologists and others. The dominant view is that the Indo-Aryans came to the subcontinent as immigrants. Another view, advocated mainly by some Indian scholars, is that they were indigenous to the subcontinent." The knowledge about the Aryans comes mostly from the Rigveda-samhita, i. e. the oldest layer of the Vedas, which was composed c. 1500-1200 BCE. They brought with them their distinctive religious traditions and practices. The Vedic beliefs and practices of the pre-classical era were closely related to the hypothesised Proto-Indo-European religion, and the Indo-Iranian religion. According to Anthony, the Old Indic religion probably emerged among Indo-European immigrants in the contact zone between the Zeravshan River (present-day Uzbekistan) and (present-day) Iran. It was "a syncretic mixture of old Central Asian and new Indo-European elements", which borrowed "distinctive religious beliefs and practices" from the Bactria-Margiana Culture.

What were differences after inhabiting the northern Indus Valley?
"a syncretic mixture of old Central Asian and new Indo-European elements", which borrowed "distinctive religious beliefs and practices" from the Bactria-Margiana Culture.