BS’D
In his work Mesillat Yesharim, the Ramchal ztk’l writes that “Man is created to delight in Hashem and enjoy the radiance of His Shechinah.” This is our primary purpose. The radiance represents the joy of Gan Eden. “Gan Eden” is not a physical place rather a state of deveikut (bonding) to Hashem. In other words, the entire purpose of creation and everything in it is to enable us to attach ourselves to Him. That is the whole point of our lives.
Our Rabbis teach that the way a person thinks and feels in this world indicates how he will think and feel in the World to Come. This world is ‘boot camp’ to train us how it will be in the ‘real eternal life’ the World to Come. Therefore we ought to constantly strive to bask in the Divine radiance in this world so that we will be able to appreciate it in World to Come after 120, B’H.
The World to Come is referred to as “completely good.” What does that mean? Dovid HaMelech zt’l teaches us in Tehillim (63:28) that, “…closeness to Hashem is my good”. Therefore, to merit this “goodness” in Gan Eden, we should live with the recognition that cleaving to Hashem in this world is the main source of good. All good flowing into this world is a result of attaching it to Hashem’s will. Bonding to Hashem is ‘my good’; joyful for each of us in a beautiful personally tailored manner.