Hardest thing to achieve

Being selfless is very hard to achieve.  Probably one of the hardest things for humans to attain.

However, if you truly believe in the eternity of the soul and decide to live by truth, then you will need to work hard to forget yourself as much as possible.  

Efforts will be rewarded when you least expect.

At the end of tether

"It is when people seem at the end of their tether, and that nowhere can they find in the material world anything to help them, that they are ready to be illumined by the truths of the spirit."

Two Worlds No. 4435 (August 2013), pp. 11-12.

It is not impossible to learn lessons during happy times, of course.  However, basically, on Earth, lessons are learnt in contrast, e.g., easy and difficult, happy and unhappy, good and bad.  Thus, a life without any difficulties is not really beneficial for us in terms of soul's growth.  

For we are here on Earth for soul's growth.  

You are tested

"In the end, all of you in the physical world are tested. Your world is a test, and your experiences, the events of your lives, are your own custom-designed personal exams. How do you measure up? Do you think mostly of yourself, or do you seize opportunities to help others? These comments should help you evaluate your own performance. We do try to help along those who make right decisions. I don’t mean that they become the richest, but they do find the greatest satisfactions, and they tend to achieve that elusive sense of inner serenity that you all yearn for."

Judy Laddon (1988/2001).  A Further Step beyond the Veil.  The World Press. Kindle edition.

(With my emphases)

One of the keys to pass the test is to make the right choice. Basically, the right choice is made when we can put benefit of others before ours.

We should be kinder and more considerate to others especially during good and happy times.  For when all things proceed as we hope for, we are tested too. People tend to think that this is a matter of course and it's absolutely unnecessary to trouble to mention it afresh. Actually, this is much easier said than done.  

If we are indulged in our own success and bliss and take it for granted, thinking that our efforts and hard work were only rewarded, not grateful to others who have helped us, or totally indifferent to those who are less fortunate or in trouble, we will end up failing the exam.   

Radioactive waste is not an intrinsic part

"The atom can be used for good. Its power can lead to the betterment of humanity. Toxic byproducts do not have to be a part of the process. But the evolution of man's atomic technology cannot leap ahead of his own spirit.To date, the most prevalent motives of those working with nuclear science have been greed, lust and selfish exploitation. So the science has followed suit, producing huge profits, tremendous power and unthinkable pollution. Nuclear technology has simply magnified the spirits of the people controlling it. When humankind approaches the science with a new spirit, then a new process, a new technology will result.

When the spirit is one of humble reverence for the earth, for the powerful forces of nature, when the spirit seeks to unite humankind in goodwill and to share the earth's resources in order to alleviate material suffering, when the spirit is to share all one has with others, then and only then will the whole science of nuclear processes be unlocked to your physicists. There is a way, there is a path to the solution of these apparently insoluble problems. The atom can lead to abundant power and energy. It can be used for peaceful purposes exclusively. This can be accomplished with virtually no toxic byproducts. The terrible radioactive waste material that you now have is not an intrinsic part of nuclear power. And -- this should comfort many of you -- the stockpile of radioactive waste that you now have and that you project to be deadly for hundreds of thousands of years -- can be eliminated safely and surely. It is not inevitable that those of your generation leave a legacy of incredibly toxic and polluting materials for all humanity to endure, into the far reaches of the earth's future."

Judy Laddon. (1998/2002) Another Look at the Life Beyond. Kindle Edition.

Emphases are mine.　

What do you think of this information? 

Not the act but the motive

"As always, it is not the letter but the spirit that matters; not the form but the substance; not the act but the motive."

Gina Cerminara (1950). Many Mansions: The Edgar Cayce Story on Reincarnation. p. 127.

Service is the one thing

"Service is the one thing that we all learn here," added Silver Birch, "and you can serve in so many different capacities. You can serve by giving light, serve by bringing colour into people's lives, serve cheering them when they are downcast, serve by helping to find truth--you can serve in so many ways."

Kazuo Kondo trans. and ed. Silver Birch: Kyo no Kotoba. p. 147.

It is said that there are roughly 4 purposes for souls to be born on Earth with : 1) to fulfil our wishes that we could not in any of the previous lives; 2) to correct relationships with others which went wrong; 3) to awaken our abilities that are latent, to straighten kinks in our nature, and to achieve whatever good we have planned to; and 4) to shed light on people around us with our talents or abilities that we have acquired through previous incarnations.  Any souls were born with these four purposes in one lifetime. The above quotation mainly refers to purpose 4.  

Religions can help

"Am I?  The Bible represents a fundamental guidepost for millions of people on the planet, in much the same way the Koran, Torah, and Pali Canon offer guidance to people of other religions.  If you and I could dig up documentation that contradicted the holy stories of Islamic belief, Judaic belief, Buddhist belief, pagan belief, should we do that?  Should we have a flag and tell the Buddhists that we have proof the Buddha did not come from a lotus blossom?  Or that Jesus was not born of a literary virgin birth?  Those who truly understand their faiths understand the stories are metaphorical."
      Sophie looked skeptical.  "My friends who are devout Christians definitely believe that Christ literally walked on water, literally turned water into wine, and was born of a literal virgin birth."
     "My point exactly," Langdon said.  "Religious allegory has become a part of the fabric of reality.  And living in that reality helps millions of people cope and be better people."
     "But it appears their reality is false."

Dan Brown.  (2003)  Da Vinci Code: A Novel. p. 370.

Basically, existing religions are all similar in the sense that they contain credos and beliefs that are not compatible with Spiritual truths, although they do share the fundamental truths. 

First was the Spirit world, which was created by Great Spirit or God.  All the religions on this planet originally sprang out in that world and was brought down to Earth through spiritual leaders or gurus just for the benefit of mankind.