By referring to one narration from the Messenger of God (pbuh&hp) and the commander of the faithful, Imam Ali (A.S), Professor Hussein Ansarian said: the paradise is tied with worship. When you worship, indeed, you are splitting the mine; from this mine God's mercy, forgiveness, favors, and satisfaction are manifested and God's paradise rise accordingly. It is not wise and logical not to value the orders and commandments of the Lord of the universe, this of great unfairness.
source : erfan.ir