Teacher-student relationships

Why are teacher-student relationships so important in creating a positive learning environment for early learners?

Readings-

http://gcumedia.com/digital-resources/cengage/2013/a-guidance-approach-for-the-encouraging-classroom_ebook_6e.php

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https://lopes.idm.oclc.org/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=ehh&AN=96070989&site=ehost-live&scope=site
https://www.youtube.com/watch?v=-oAzH79niws&t=11s