Matthew 6:21 is a very powerful and comforting verse to me. It causes me to ask myself, "Where is my treasure?" The first thing that comes to my mind is my family. I care about them and love them so much and they love me back. Of course my number one treasure is God. You see, He is the one that wakes me up every morning. He is the first person that I speak to. I thank Him for not only waking me up, but for waking up my family as well.
As long as I have God, my needs will always be met. My desires will often be placed before me, but only in His timing and His will. But the main point is, my treasures are in Heaven. We work so hard to have material things, but they are temporary and we cannot take them with us when we die. But if we have a relationship with God, then our treasures are in Heaven, which is eternal. Our treasures in Heaven cannot be destroyed or stolen.
That leads to very important question. "What does a relationship with God look like?" Well first, you must have faith and believe in Him. You must believe that Jesus is the Son of God, and you must believe that the Holy Spirit is God that dwells in us when we are saved. You must acknowledge that you are a sinner and Jesus died for your sins and was raised again to sit on the throne at the right hand of God.
Communication in any relationship is extremely important. By praying and reading God's word, you are in communication with Him. You speak to Him in prayer and He speaks to you in His word. For the word of God is alive and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart. Hebrews 12
It is one thing to read the word, and an entirely different thing to apply it to your life and put it into action by obeying His commandments. When we obey God, He blesses us abundantly and sets us up to receive our treasures in Heaven.
Oh, and don't let me forget about trust which ties in with faith. "Now faith is the substance of things hoped for, the evidence of things not seen". Hebrews 11
What does that mean to you? When we send a package to someone, we have faith in the postal system or UPS and hope that it will arrive at it's destination right? When the package arrives, we don't see how it gets there but it took our exercise of faith to send it anyways. So trust and exercise your faith in God that He will keep His promises. Try Him out and see if He delivers.