It is very hard for non-sikhs to follow Guru's Instructions because most non-sikhs are not prepared to accept "sava lakh se ek laraun" concept. It is foreign to non-sikhs to understand "je tu prem di gali vich auna, talli uttey seesh rakh le ". Non-sikhs do not understand that the road to heaven starts from within one's self. Most people seek outer miracles, most people are go-getters thus their lives are surrounded by misery.
How can one find heaven when he's trying to get rid of misery?
One has to first get out of the prison of misery before one can begin to find heaven. Most people try desperately to find happiness, joy, fulfillment, tranquility and peace out there in the world, not knowing that the nature of happiness is such that it can only exist within one's heart.
The greatest miracle there is for me is that I am alive and conscious of what Guru Ji's instructions are. The doorway to happiness is within you. That something missing in your life can be found within you. SGGS is the manual you have managed to find in this lifetime. Read and understand what is written and you will be on your way back to heaven. Nobody else can do it for you, not even Jesus.
The manual known as Sri Guru Granth Sahib will show you the "Stargate" that leads to heaven, Sach Khand.
Most of the non-sikhs might never even lay their hands on SGGS and they will never be able to leave this prison of misery because they don't even realise that they are in a prison of the 5 passions.
When we were born, Waheguru gave us a package. This package included all the 'necessary' things we will be needing during our visit on earth. As we grew older, we forgot about this package so we really never opened it to use it. This package had all the cures of the diseases of the mind and emotions. The fortunate realised their innate possession and used these gifts of joy, happiness, peace and tranquility and exhibited them in their daily lives. Thus they were hardly affected by dissappointments, sadness, turmoil and war. Their immunity was strong against the evils of the world.
All these qualities are also the nature of soul, our trueself.
The nature of joy or happiness is not complicated nor complex. It is simply beautiful. If you can't see it yet, then slow down and try to still your emotions. The breaths or swas are very precious. They are irreplaceable.
Learn how to appreciate every breath for at least 2 minutes for a start. Later increase the time and the more you practice this technique the more you will start understanding how easy Sikhi really is.
There are many of us willing to help you. But the first condition is you must be ready to follow instructions. This forum is the right place to be.