Love and Trust

How can one knows that the other person state of mind will find comfort in what this person is doing for this person.

Unless the said person speaks about it. So a same act won’t find comfort at a given time.
Since I have lost the color of love and trust at my end. So tracing back it’s true colors. For me, it didn’t exist or if exist I can’t able to get it true form. Or may be my definition is different which I can’t able to define at my end properly.
For me, trust and love is everywhere depends upon our heart condition, if we are in good state everything looks good and we love everything we see, else we find the darkness in happiness by saying it’s witty or crude!
Same goes with trust, when we are clean from inside, everything looks pure and trustworthy else everything looks the opposite.