Earth is full of saccharine as well bitterness for it’s cursed whilst the first man kinds defied God’s command. Then to Adam He said, “Because you have heeded the voice of your wife, and have eaten from the tree of which I commanded you, saying, ‘You shall not eat of it’: “Cursed is the ground for your sake.”(Genesis 3:17)
Man living on this earth then shall have the will and knowledge to discriminate the harm and hold fast what is good by testing. The significance of it in spiritual life is to recognize as genuine after examination, to approve, deem worthy. There is a true force working against humanity. Satan wants us to be consumed in sin/corruption. “If you do well, will you not be accepted? And if you do not do well, sin lies at the door. Its desire is for you, but you should rule over it.” (Genesis 4:7)