We are great beings, not weak ones. Humans have the greatest status and can do anything. We can accomplish as much as we believe we can. Buddha said all beings are the same as Buddha. That is, beings have the same amount of merits, but they are unable to use them because they do not know they are Buddhas.
We should believe that we have the power to change our fixed karma and our environment. The more we practice spiritually, the better our concentration will be and the more we can change the environment—not only our own environment, but also that of our friends and family, the world, and even the universe. We decide whether we go to Heaven or hell. We will not go to hell if we decide not to. We might go there because we choose to. The power of decision lies in our hands. Truly, everything is created by the mind.