It's about life

[jesusislord]

What does it means by it's about life? It's a kind of feeling?

this is a passage from lsm material

it's not a matter of asking whether something is right or wrong… [but] of checking with the life inside us whenever we do something.
What does the new life which God has given us tell us inwardly about this matter? What does our inner life say? If the life is strong and active within us, we can do this; if the life is cold and retreating within us, we should not. Our principle for living is inward instead of outward.
The standard of Christian living does not only deal with evil things but also with good and right things. Many matters are right according to human standards, but the divine standard pronounces them wrong because they lack the divine life…. Decisions should be made according to God’s life as it rises up or recedes within us…. Do we feel joyful inwardly about this matter? Do we have spiritual happiness and peace? These are the matters that decide our spiritual path. (Two Principles of Living (booklet), pp. 2-3, 6-9, 13-15)

in the bible paul's teaching is often direct, he's clear what is right and what is wrong. Like you shouldn't steal, shouldn't hurt others. Jesus's affirmation on the 10 commandments is also quite clear. but when it comes to lsm it is all about life. It gives me an impression that it's about feeling, a feeling from a group of people, it's superficial.

What if a brother sinned and he feels it's ok? doesn't it against the bible? lsm is one of the rare group that downplay what's obviously right and wrong and replace it with life. What's the root of this teaching?