There is so much crap out there about how difficult enlightenment is to experience. Some will say that you have to go many, many lifetimes of suffering before you will reach it. Those who use the language of Heaven or Oneness with God pretty much say the same thing that you have to suffer for many years throughout your life in order to go to heaven.
The truth is too simple for these complex minds to accept, so they ASSUME that it must be difficult for anyone to experience.
Jesus pointed this out many times, such as when he said, “Great is the God that reveals the truth to babes but hides it from the wise and learned ones.” (Mat 11:25)
All one has to do is to practice loving whatever thought that comes through their mind, no matter what it is, easy enough to say but in practice hard to do for so many reason.
Society and life teaches us to be afraid of things in the world so our habit is to think of those things and react with fear (contraction). Honesty tells us that our thoughts of things in the world are not the same thing as the thing itself. If we are honest with ourselves then we will admit that the thoughts cannot hurt us, it is only our reactions to the thoughts that cause of harm or negativity.
There are lots of reasons why the world does not want you to find the Kingdom of Heaven or Nirvana or Enlightenment or Perfection or whatever you want to call it. It is to the ruling class’s advantage to keep you suffering so it is easier to control and manipulate you. But for the person who is awake enough to see that it is not to their advantage to continue suffering then ignoring the words of those who have not found enlightenment or heaven is the best strategy.