Brain is part of the body. Stomach is also part of the body. We input food from outside that goes into the stomach. Similarly sensory organs input information into the brain. The information stored in the brain is called the mind. While food is digested within a short time, information is stored for a long time and is used for making decisions. (Narayana Rao, 21 July 2018)
Further Reading about Mind and Body
What Is the Mind?
Understanding mind and consciousness via the unified theory
Posted Dec 22, 2011
Gregg Henriques Ph.D.
Theory of Knowledge.
https://www.psychologytoday.com/us/blog/theory-knowledge/201112/what-is-the-mind
What’s The Difference Between The Mind And The Brain?
SEPTEMBER 12, 2014
https://www.thebestbrainpossible.com/the-mind-and-the-brain-what-is-the-difference/
What is the mind-body problem?
Nagel T,
Ciba Found Symp. 1993;174:1-7; discussion 7-13.
https://www.ncbi.nlm.nih.gov/pubmed/8319503
CHAPTER 3: MIND
From Great Issues in Philosophy, by James Fieser
CONTENTS
A. Consciousness
Three Sources of Knowledge about the Conscious Mind
Three Features of Consciousness
Problem of Other Minds
B. Personal Identity
The Body Criterion
The Mind Criterion
Life after Death
D. Varieties of Mind-body Dualism
Dualism's Assets and Liabilities
Interactive dualism
Parallelism
E. Varieties of Mind-Body Materialism
Arguments for Mind-Body Materialism
https://www.utm.edu/staff/jfieser/class/120/3-mind.htm