Trying to Understand the first and greatest instruction, or commandment given in the bible.

DEUTERONOMY 6:5 the LORD God And thou shalt love the Lord thy GOD with all thine heart, and with all thine soul, and with all thine might. MATTHEW 22: [37] Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind. [38] This is the first and great commandment. Trying to understand this as part of my journey in seeking the Kingdom of Heaven as instructed by Jesus words of red in Matthew 6:33. Anyone that can contribute to this meaning please contact me any way possible so we can better find the kingdom before it's too late :(. So please share :)