In every way, God is greater than man. A man would have to be a thief to claim equality with God. Yet, Christ thought it not robbery to be equal with God.
The land cannot continually endure the stress of producing the same crops without some time of rest for renewal. Man is no different.
Many people use time set aside for rest to do things that deprive of rest. This compounds the need for rest and the problems associated with not getting any.