True religion is to offer the sacrifice of worship, to fast, pray, give tithes, care for the needy, abstain for sexual impurity, to conform to the family rules in mutual submission and to do it all with the right interior disposition, with true faith, humility, and love.
If you do all the stuff without the right interior disposition, you have false religion. If you try to have the right interior disposition without obedience, you have no religion, and end up with the subjective god of self.
This Orthodox Christian life is not simply about getting all the t's crossed and i's dotted- as important as that is- getting the Faith right is important so that we can authentically know God in the Spirit, and that knowledge, which is intimate and personal results in us becoming faithful and holy.
Someone once said I do not do the things I want to do and I do the things I do not want to do, and this makes me very unhappy- Well, stop! Start doing the things you want and stop doing the things you don't want to do, and be happy. Be obedient to the command of the Lord and declare the praises of His wonder and be joyful.
Jesus tells tells his disciples a short little parable. He says in verse 21, "the woman, when she is in labor, has sorrow, because her hour is come, but as soon as she has given birth to the child, she no longer remembers the anguish for joy that a human being has come into the world." This is not a simple, random illustration or some generic narrative about what women experience in childbirth and how that might be comparable to what the disciples are about to go through. That is not what this parable means. This parable is a very particular reference to a very particular Woman, and Human Being which she bore.