After there is peace (grass) and satisfaction (herbs), then trees (strength and glory) will develop and provide fruit (a growing sense of love for one another) in your courtship.
So often we hear young people say after the first or second date, "I'm in love!" We all know that trees do not normally grow and yield fruit so fast. They develop over a period of time (in a courtship that might be a long time or a short time, but it is a time of definite development and growth). When a courtship develops and matures properly, the sweet fruit and strength of real and abiding love is the wonderful result.
Christian courtships also have a strength which, by the time the tree is bearing fruit, will be able to withstand the winds of trials and testings that are part of every romantic relationship. Christian romances will need divine strength to withstand the fierce winds of worldly influence as well as other difficulties that will come along.
But then, after all this, what a beautiful thing to behold! A romance between two believers that is characterized by grass, herbs and trees and is founded on solid, dry ground. May God grant the purpose of heart, faith and submission to His will to each dear young couple, that they might enjoy their relationship as God intends, in the fullest and most joyful way.