set your course and go

O, my soul                                                              
You come and you go
Through the paths
Of time and space
In useless play
You’ll not find the way
So set your course
And go

You could interpret the path in this song as a lifetime (this one) and where have you landed in this time and space. What have you accomplished? Whom have you loved?
Or maybe Kabir (the poem's  author) was thinking of past and future lifetimes.
Either way - these words reflect a sense of frivolity and aimlessness and running in circles with your life or finding and sticking to a way of life that benefits you and those in  contact with you. 
My choice has been yoga and meditating on that philosophy. Inwardly it just feels right to do so for me and helpful in so many ways by bringing me back each day with each breath to my present thoughts and actions.

The next verse is:
Sing such a song
With all your life
You'll never have
To sing again
Love such a one
With all your heart
You'll never need
To love again
​
I interpret these words to mean give it all you've got (love each other and love yourself) because the benefit is Huge. That action will ingrain in you. It will become you; a you that is shining your soul's True way of being. Sat Nam
Give Love and Receive Love. 
Make that your everyday intention. 

                                        Half of life is lost in charming others. 
                               The other half is lost in going through anxieties                                                 
                           caused by others. Leave this play, you have played enough!
                                                                           RUMI