Comradeship and the company of the humble and the good; affection for the Name and Form of the Lord — these are included in Maitri.
Karuna is the kindness one feels towards the afflicted.
Mudita is the joy one feels when meeting people who are charitable, who serve others, who help those in distress, etc.
Upeksha means Non-involvement; the feeling of unconcern at the wicked; neither loving them nor hating them. (PraV, p. 26)
There are many who talk cynically of even Satya (truth), Dharma (virtue), Shanti (peace) and
Prema (love). They say that if you stick to truth nothing can be got done, that a little lie helps much; that Dharma is what suits the need of the moment; that if you practise Shanti, you will only receive all the blows on your own back; that if you become famous as a man of prema, the entire village will squat on you and share your hard-earned wealth. Therefore, they conclude, you will be a fool if you decide to practise these four virtues.
But, just think a little and you will find out the absurdity of the criticism. It is the lie that requires intelligent bolstering, clever avoidance and deeper memory! It is much easier to speak the truth and be done with it. What you have seen or heard or done, speak about these just as you saw or heard or did! And, what is Dharma? Practising what you preach, doing as you say it has to be done, and keeping precept and practice in line. Earn virtuously, yearn piously; live in the fear of God, live for reaching God---that is Dharma. (SSS Vol.5, p. 73)